21289312

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:2003

約数の個数: 48

約数和(自身を含む): 47222784

約数和(自身を除く): 25933472

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1951, 2728, 3902, 5456, 7804, 10912, 15608, 21461, 31216, 42922, 60481, 62432, 85844, 120962, 171688, 241924, 343376, 483848, 665291, 686752, 967696, 1330582, 1935392, 2661164, 5322328, 10644656, 21289312]

約数ペア:

[(1, 21289312), (2, 10644656), (4, 5322328), (8, 2661164), (11, 1935392), (16, 1330582), (22, 967696), (31, 686752), (32, 665291), (44, 483848), (62, 343376), (88, 241924), (124, 171688), (176, 120962), (248, 85844), (341, 62432), (352, 60481), (496, 42922), (682, 31216), (992, 21461), (1364, 15608), (1951, 10912), (2728, 7804), (3902, 5456)]