20902518

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1823}}^1$

素因数の和:1858

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 35864010

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1823, 1911, 3646, 3822, 5469, 5733, 10938, 11466, 12761, 16407, 23699, 25522, 32814, 38283, 47398, 71097, 76566, 89327, 114849, 142194, 165893, 178654, 213291, 229698, 267981, 331786, 426582, 497679, 535962, 803943, 995358, 1161251, 1493037, 1607886, 2322502, 2986074, 3483753, 6967506, 10451259, 20902518]

約数ペア:

[(1, 20902518), (2, 10451259), (3, 6967506), (6, 3483753), (7, 2986074), (9, 2322502), (13, 1607886), (14, 1493037), (18, 1161251), (21, 995358), (26, 803943), (39, 535962), (42, 497679), (49, 426582), (63, 331786), (78, 267981), (91, 229698), (98, 213291), (117, 178654), (126, 165893), (147, 142194), (182, 114849), (234, 89327), (273, 76566), (294, 71097), (441, 47398), (546, 38283), (637, 32814), (819, 25522), (882, 23699), (1274, 16407), (1638, 12761), (1823, 11466), (1911, 10938), (3646, 5733), (3822, 5469)]