21018710580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2943797}}^1$

素因数の和:2943833

約数の個数: 96

約数和(自身を含む): 71216361216

約数和(自身を除く): 50197650636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3570, 7140, 2943797, 5887594, 8831391, 11775188, 14718985, 17662782, 20606579, 29437970, 35325564, 41213158, 44156955, 50044549, 58875940, 61819737, 82426316, 88313910, 100089098, 103032895, 123639474, 150133647, 176627820, 200178196, 206065790, 247278948, 250222745, 300267294, 309098685, 350311843, 412131580, 500445490, 600534588, 618197370, 700623686, 750668235, 1000890980, 1050935529, 1236394740, 1401247372, 1501336470, 1751559215, 2101871058, 3002672940, 3503118430, 4203742116, 5254677645, 7006236860, 10509355290, 21018710580]

約数ペア:

[(1, 21018710580), (2, 10509355290), (3, 7006236860), (4, 5254677645), (5, 4203742116), (6, 3503118430), (7, 3002672940), (10, 2101871058), (12, 1751559215), (14, 1501336470), (15, 1401247372), (17, 1236394740), (20, 1050935529), (21, 1000890980), (28, 750668235), (30, 700623686), (34, 618197370), (35, 600534588), (42, 500445490), (51, 412131580), (60, 350311843), (68, 309098685), (70, 300267294), (84, 250222745), (85, 247278948), (102, 206065790), (105, 200178196), (119, 176627820), (140, 150133647), (170, 123639474), (204, 103032895), (210, 100089098), (238, 88313910), (255, 82426316), (340, 61819737), (357, 58875940), (420, 50044549), (476, 44156955), (510, 41213158), (595, 35325564), (714, 29437970), (1020, 20606579), (1190, 17662782), (1428, 14718985), (1785, 11775188), (2380, 8831391), (3570, 5887594), (7140, 2943797)]