20910984

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 33521016

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 79, 82, 123, 158, 164, 237, 246, 269, 316, 328, 474, 492, 538, 632, 807, 948, 984, 1076, 1614, 1896, 2152, 3228, 3239, 6456, 6478, 9717, 11029, 12956, 19434, 21251, 22058, 25912, 33087, 38868, 42502, 44116, 63753, 66174, 77736, 85004, 88232, 127506, 132348, 170008, 255012, 264696, 510024, 871291, 1742582, 2613873, 3485164, 5227746, 6970328, 10455492, 20910984]

約数ペア:

[(1, 20910984), (2, 10455492), (3, 6970328), (4, 5227746), (6, 3485164), (8, 2613873), (12, 1742582), (24, 871291), (41, 510024), (79, 264696), (82, 255012), (123, 170008), (158, 132348), (164, 127506), (237, 88232), (246, 85004), (269, 77736), (316, 66174), (328, 63753), (474, 44116), (492, 42502), (538, 38868), (632, 33087), (807, 25912), (948, 22058), (984, 21251), (1076, 19434), (1614, 12956), (1896, 11029), (2152, 9717), (3228, 6478), (3239, 6456)]