21448560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{751}}^1$

素因数の和:791

約数の個数: 160

約数和(自身を含む): 80566272

約数和(自身を除く): 59117712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 51, 56, 60, 68, 70, 80, 84, 85, 102, 105, 112, 119, 120, 136, 140, 168, 170, 204, 210, 238, 240, 255, 272, 280, 336, 340, 357, 408, 420, 476, 510, 560, 595, 680, 714, 751, 816, 840, 952, 1020, 1190, 1360, 1428, 1502, 1680, 1785, 1904, 2040, 2253, 2380, 2856, 3004, 3570, 3755, 4080, 4506, 4760, 5257, 5712, 6008, 7140, 7510, 9012, 9520, 10514, 11265, 12016, 12767, 14280, 15020, 15771, 18024, 21028, 22530, 25534, 26285, 28560, 30040, 31542, 36048, 38301, 42056, 45060, 51068, 52570, 60080, 63084, 63835, 76602, 78855, 84112, 89369, 90120, 102136, 105140, 126168, 127670, 153204, 157710, 178738, 180240, 191505, 204272, 210280, 252336, 255340, 268107, 306408, 315420, 357476, 383010, 420560, 446845, 510680, 536214, 612816, 630840, 714952, 766020, 893690, 1021360, 1072428, 1261680, 1340535, 1429904, 1532040, 1787380, 2144856, 2681070, 3064080, 3574760, 4289712, 5362140, 7149520, 10724280, 21448560]

約数ペア:

[(1, 21448560), (2, 10724280), (3, 7149520), (4, 5362140), (5, 4289712), (6, 3574760), (7, 3064080), (8, 2681070), (10, 2144856), (12, 1787380), (14, 1532040), (15, 1429904), (16, 1340535), (17, 1261680), (20, 1072428), (21, 1021360), (24, 893690), (28, 766020), (30, 714952), (34, 630840), (35, 612816), (40, 536214), (42, 510680), (48, 446845), (51, 420560), (56, 383010), (60, 357476), (68, 315420), (70, 306408), (80, 268107), (84, 255340), (85, 252336), (102, 210280), (105, 204272), (112, 191505), (119, 180240), (120, 178738), (136, 157710), (140, 153204), (168, 127670), (170, 126168), (204, 105140), (210, 102136), (238, 90120), (240, 89369), (255, 84112), (272, 78855), (280, 76602), (336, 63835), (340, 63084), (357, 60080), (408, 52570), (420, 51068), (476, 45060), (510, 42056), (560, 38301), (595, 36048), (680, 31542), (714, 30040), (751, 28560), (816, 26285), (840, 25534), (952, 22530), (1020, 21028), (1190, 18024), (1360, 15771), (1428, 15020), (1502, 14280), (1680, 12767), (1785, 12016), (1904, 11265), (2040, 10514), (2253, 9520), (2380, 9012), (2856, 7510), (3004, 7140), (3570, 6008), (3755, 5712), (4080, 5257), (4506, 4760)]