20921656084

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1\times {\mathrm{1847}}^1$

素因数の和:2377

約数の個数: 96

約数和(自身を含む): 45265651200

約数和(自身を除く): 24343995116

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 53, 68, 106, 119, 212, 238, 371, 449, 476, 742, 898, 901, 1484, 1796, 1802, 1847, 3143, 3604, 3694, 6286, 6307, 7388, 7633, 12572, 12614, 12929, 15266, 23797, 25228, 25858, 30532, 31399, 47594, 51716, 53431, 62798, 95188, 97891, 106862, 125596, 166579, 195782, 213724, 219793, 333158, 391564, 404549, 439586, 666316, 685237, 809098, 829303, 879172, 1370474, 1618196, 1658606, 1664147, 2740948, 2831843, 3317212, 3328294, 5663686, 5805121, 6656588, 11327372, 11610242, 11649029, 14098151, 23220484, 23298058, 28196302, 43953059, 46596116, 56392604, 87906118, 98687057, 175812236, 197374114, 307671413, 394748228, 615342826, 747202003, 1230685652, 1494404006, 2988808012, 5230414021, 10460828042, 20921656084]

約数ペア:

[(1, 20921656084), (2, 10460828042), (4, 5230414021), (7, 2988808012), (14, 1494404006), (17, 1230685652), (28, 747202003), (34, 615342826), (53, 394748228), (68, 307671413), (106, 197374114), (119, 175812236), (212, 98687057), (238, 87906118), (371, 56392604), (449, 46596116), (476, 43953059), (742, 28196302), (898, 23298058), (901, 23220484), (1484, 14098151), (1796, 11649029), (1802, 11610242), (1847, 11327372), (3143, 6656588), (3604, 5805121), (3694, 5663686), (6286, 3328294), (6307, 3317212), (7388, 2831843), (7633, 2740948), (12572, 1664147), (12614, 1658606), (12929, 1618196), (15266, 1370474), (23797, 879172), (25228, 829303), (25858, 809098), (30532, 685237), (31399, 666316), (47594, 439586), (51716, 404549), (53431, 391564), (62798, 333158), (95188, 219793), (97891, 213724), (106862, 195782), (125596, 166579)]