19938932

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 39184320

約数和(自身を除く): 19245388

約数列:

[1, 2, 4, 13, 26, 52, 59, 67, 97, 118, 134, 194, 236, 268, 388, 767, 871, 1261, 1534, 1742, 2522, 3068, 3484, 3953, 5044, 5723, 6499, 7906, 11446, 12998, 15812, 22892, 25996, 51389, 74399, 84487, 102778, 148798, 168974, 205556, 297596, 337948, 383441, 766882, 1533764, 4984733, 9969466, 19938932]

約数ペア:

[(1, 19938932), (2, 9969466), (4, 4984733), (13, 1533764), (26, 766882), (52, 383441), (59, 337948), (67, 297596), (97, 205556), (118, 168974), (134, 148798), (194, 102778), (236, 84487), (268, 74399), (388, 51389), (767, 25996), (871, 22892), (1261, 15812), (1534, 12998), (1742, 11446), (2522, 7906), (3068, 6499), (3484, 5723), (3953, 5044)]