18971524

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1951}}^1$

素因数の和:1996

約数の個数: 48

約数和(自身を含む): 41319936

約数和(自身を除く): 22348412

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1951, 2431, 3902, 4862, 7804, 9724, 21461, 25363, 33167, 42922, 50726, 66334, 85844, 101452, 132668, 278993, 364837, 431171, 557986, 729674, 862342, 1115972, 1459348, 1724684, 4742881, 9485762, 18971524]

約数ペア:

[(1, 18971524), (2, 9485762), (4, 4742881), (11, 1724684), (13, 1459348), (17, 1115972), (22, 862342), (26, 729674), (34, 557986), (44, 431171), (52, 364837), (68, 278993), (143, 132668), (187, 101452), (221, 85844), (286, 66334), (374, 50726), (442, 42922), (572, 33167), (748, 25363), (884, 21461), (1951, 9724), (2431, 7804), (3902, 4862)]