21992040

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2909}}^1$

素因数の和:2936

約数の個数: 128

約数和(自身を含む): 83808000

約数和(自身を除く): 61815960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2909, 3780, 5818, 7560, 8727, 11636, 14545, 17454, 20363, 23272, 26181, 29090, 34908, 40726, 43635, 52362, 58180, 61089, 69816, 78543, 81452, 87270, 101815, 104724, 116360, 122178, 130905, 157086, 162904, 174540, 183267, 203630, 209448, 244356, 261810, 305445, 314172, 349080, 366534, 392715, 407260, 488712, 523620, 549801, 610890, 628344, 733068, 785430, 814520, 916335, 1047240, 1099602, 1221780, 1466136, 1570860, 1832670, 2199204, 2443560, 2749005, 3141720, 3665340, 4398408, 5498010, 7330680, 10996020, 21992040]

約数ペア:

[(1, 21992040), (2, 10996020), (3, 7330680), (4, 5498010), (5, 4398408), (6, 3665340), (7, 3141720), (8, 2749005), (9, 2443560), (10, 2199204), (12, 1832670), (14, 1570860), (15, 1466136), (18, 1221780), (20, 1099602), (21, 1047240), (24, 916335), (27, 814520), (28, 785430), (30, 733068), (35, 628344), (36, 610890), (40, 549801), (42, 523620), (45, 488712), (54, 407260), (56, 392715), (60, 366534), (63, 349080), (70, 314172), (72, 305445), (84, 261810), (90, 244356), (105, 209448), (108, 203630), (120, 183267), (126, 174540), (135, 162904), (140, 157086), (168, 130905), (180, 122178), (189, 116360), (210, 104724), (216, 101815), (252, 87270), (270, 81452), (280, 78543), (315, 69816), (360, 61089), (378, 58180), (420, 52362), (504, 43635), (540, 40726), (630, 34908), (756, 29090), (840, 26181), (945, 23272), (1080, 20363), (1260, 17454), (1512, 14545), (1890, 11636), (2520, 8727), (2909, 7560), (3780, 5818)]