21862680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1$

素因数の和:1569

約数の個数: 128

約数和(自身を含む): 79418880

約数和(自身を除く): 57556200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1531, 1785, 2040, 2380, 2856, 3062, 3570, 4593, 4760, 6124, 7140, 7655, 9186, 10717, 12248, 14280, 15310, 18372, 21434, 22965, 26027, 30620, 32151, 36744, 42868, 45930, 52054, 53585, 61240, 64302, 78081, 85736, 91860, 104108, 107170, 128604, 130135, 156162, 160755, 182189, 183720, 208216, 214340, 257208, 260270, 312324, 321510, 364378, 390405, 428680, 520540, 546567, 624648, 643020, 728756, 780810, 910945, 1041080, 1093134, 1286040, 1457512, 1561620, 1821890, 2186268, 2732835, 3123240, 3643780, 4372536, 5465670, 7287560, 10931340, 21862680]

約数ペア:

[(1, 21862680), (2, 10931340), (3, 7287560), (4, 5465670), (5, 4372536), (6, 3643780), (7, 3123240), (8, 2732835), (10, 2186268), (12, 1821890), (14, 1561620), (15, 1457512), (17, 1286040), (20, 1093134), (21, 1041080), (24, 910945), (28, 780810), (30, 728756), (34, 643020), (35, 624648), (40, 546567), (42, 520540), (51, 428680), (56, 390405), (60, 364378), (68, 321510), (70, 312324), (84, 260270), (85, 257208), (102, 214340), (105, 208216), (119, 183720), (120, 182189), (136, 160755), (140, 156162), (168, 130135), (170, 128604), (204, 107170), (210, 104108), (238, 91860), (255, 85736), (280, 78081), (340, 64302), (357, 61240), (408, 53585), (420, 52054), (476, 45930), (510, 42868), (595, 36744), (680, 32151), (714, 30620), (840, 26027), (952, 22965), (1020, 21434), (1190, 18372), (1428, 15310), (1531, 14280), (1785, 12248), (2040, 10717), (2380, 9186), (2856, 7655), (3062, 7140), (3570, 6124), (4593, 4760)]