20421792

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{3083}}^1$

素因数の和:3122

約数の個数: 72

約数和(自身を含む): 60619104

約数和(自身を除く): 40197312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 144, 184, 207, 276, 288, 368, 414, 552, 736, 828, 1104, 1656, 2208, 3083, 3312, 6166, 6624, 9249, 12332, 18498, 24664, 27747, 36996, 49328, 55494, 70909, 73992, 98656, 110988, 141818, 147984, 212727, 221976, 283636, 295968, 425454, 443952, 567272, 638181, 850908, 887904, 1134544, 1276362, 1701816, 2269088, 2552724, 3403632, 5105448, 6807264, 10210896, 20421792]

約数ペア:

[(1, 20421792), (2, 10210896), (3, 6807264), (4, 5105448), (6, 3403632), (8, 2552724), (9, 2269088), (12, 1701816), (16, 1276362), (18, 1134544), (23, 887904), (24, 850908), (32, 638181), (36, 567272), (46, 443952), (48, 425454), (69, 295968), (72, 283636), (92, 221976), (96, 212727), (138, 147984), (144, 141818), (184, 110988), (207, 98656), (276, 73992), (288, 70909), (368, 55494), (414, 49328), (552, 36996), (736, 27747), (828, 24664), (1104, 18498), (1656, 12332), (2208, 9249), (3083, 6624), (3312, 6166)]