20963408

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:539

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 21221392

約数列:

[1, 2, 4, 8, 16, 53, 59, 106, 118, 212, 236, 419, 424, 472, 838, 848, 944, 1676, 3127, 3352, 6254, 6704, 12508, 22207, 24721, 25016, 44414, 49442, 50032, 88828, 98884, 177656, 197768, 355312, 395536, 1310213, 2620426, 5240852, 10481704, 20963408]

約数ペア:

[(1, 20963408), (2, 10481704), (4, 5240852), (8, 2620426), (16, 1310213), (53, 395536), (59, 355312), (106, 197768), (118, 177656), (212, 98884), (236, 88828), (419, 50032), (424, 49442), (472, 44414), (838, 25016), (848, 24721), (944, 22207), (1676, 12508), (3127, 6704), (3352, 6254)]