20938016

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3499}}^1$

素因数の和:3537

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 26689984

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3499, 5984, 6998, 13996, 27992, 38489, 55984, 59483, 76978, 111968, 118966, 153956, 237932, 307912, 475864, 615824, 654313, 951728, 1231648, 1308626, 1903456, 2617252, 5234504, 10469008, 20938016]

約数ペア:

[(1, 20938016), (2, 10469008), (4, 5234504), (8, 2617252), (11, 1903456), (16, 1308626), (17, 1231648), (22, 951728), (32, 654313), (34, 615824), (44, 475864), (68, 307912), (88, 237932), (136, 153956), (176, 118966), (187, 111968), (272, 76978), (352, 59483), (374, 55984), (544, 38489), (748, 27992), (1496, 13996), (2992, 6998), (3499, 5984)]