21902904

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4987}}^1$

素因数の和:5060

約数の個数: 48

約数和(自身を含む): 60304920

約数和(自身を除く): 38402016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4987, 9974, 14961, 19948, 29922, 39896, 44883, 59844, 89766, 119688, 179532, 304207, 359064, 608414, 912621, 1216828, 1825242, 2433656, 2737863, 3650484, 5475726, 7300968, 10951452, 21902904]

約数ペア:

[(1, 21902904), (2, 10951452), (3, 7300968), (4, 5475726), (6, 3650484), (8, 2737863), (9, 2433656), (12, 1825242), (18, 1216828), (24, 912621), (36, 608414), (61, 359064), (72, 304207), (122, 179532), (183, 119688), (244, 89766), (366, 59844), (488, 44883), (549, 39896), (732, 29922), (1098, 19948), (1464, 14961), (2196, 9974), (4392, 4987)]