21137550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 96

約数和(自身を含む): 61496064

約数和(自身を除く): 40358514

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 41, 42, 50, 70, 75, 82, 105, 123, 150, 175, 205, 210, 246, 287, 350, 410, 491, 525, 574, 615, 861, 982, 1025, 1050, 1230, 1435, 1473, 1722, 2050, 2455, 2870, 2946, 3075, 3437, 4305, 4910, 6150, 6874, 7175, 7365, 8610, 10311, 12275, 14350, 14730, 17185, 20131, 20622, 21525, 24550, 34370, 36825, 40262, 43050, 51555, 60393, 73650, 85925, 100655, 103110, 120786, 140917, 171850, 201310, 257775, 281834, 301965, 422751, 503275, 515550, 603930, 704585, 845502, 1006550, 1409170, 1509825, 2113755, 3019650, 3522925, 4227510, 7045850, 10568775, 21137550]

約数ペア:

[(1, 21137550), (2, 10568775), (3, 7045850), (5, 4227510), (6, 3522925), (7, 3019650), (10, 2113755), (14, 1509825), (15, 1409170), (21, 1006550), (25, 845502), (30, 704585), (35, 603930), (41, 515550), (42, 503275), (50, 422751), (70, 301965), (75, 281834), (82, 257775), (105, 201310), (123, 171850), (150, 140917), (175, 120786), (205, 103110), (210, 100655), (246, 85925), (287, 73650), (350, 60393), (410, 51555), (491, 43050), (525, 40262), (574, 36825), (615, 34370), (861, 24550), (982, 21525), (1025, 20622), (1050, 20131), (1230, 17185), (1435, 14730), (1473, 14350), (1722, 12275), (2050, 10311), (2455, 8610), (2870, 7365), (2946, 7175), (3075, 6874), (3437, 6150), (4305, 4910)]