20121574

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 36139824

約数和(自身を除く): 16018250

約数列:

[1, 2, 11, 17, 22, 34, 67, 73, 121, 134, 146, 187, 242, 374, 737, 803, 1139, 1241, 1474, 1606, 2057, 2278, 2482, 4114, 4891, 8107, 8833, 9782, 12529, 13651, 16214, 17666, 25058, 27302, 53801, 83147, 107602, 137819, 150161, 166294, 275638, 300322, 591811, 914617, 1183622, 1829234, 10060787, 20121574]

約数ペア:

[(1, 20121574), (2, 10060787), (11, 1829234), (17, 1183622), (22, 914617), (34, 591811), (67, 300322), (73, 275638), (121, 166294), (134, 150161), (146, 137819), (187, 107602), (242, 83147), (374, 53801), (737, 27302), (803, 25058), (1139, 17666), (1241, 16214), (1474, 13651), (1606, 12529), (2057, 9782), (2278, 8833), (2482, 8107), (4114, 4891)]