21907408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1009}}^1$

素因数の和:1099

約数の個数: 40

約数和(自身を含む): 45086400

約数和(自身を除く): 23178992

約数列:

[1, 2, 4, 8, 16, 23, 46, 59, 92, 118, 184, 236, 368, 472, 944, 1009, 1357, 2018, 2714, 4036, 5428, 8072, 10856, 16144, 21712, 23207, 46414, 59531, 92828, 119062, 185656, 238124, 371312, 476248, 952496, 1369213, 2738426, 5476852, 10953704, 21907408]

約数ペア:

[(1, 21907408), (2, 10953704), (4, 5476852), (8, 2738426), (16, 1369213), (23, 952496), (46, 476248), (59, 371312), (92, 238124), (118, 185656), (184, 119062), (236, 92828), (368, 59531), (472, 46414), (944, 23207), (1009, 21712), (1357, 16144), (2018, 10856), (2714, 8072), (4036, 5428)]