21959210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 27634390

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 59, 65, 70, 91, 118, 130, 182, 295, 409, 413, 455, 590, 767, 818, 826, 910, 1534, 2045, 2065, 2863, 3835, 4090, 4130, 5317, 5369, 5726, 7670, 10634, 10738, 14315, 24131, 26585, 26845, 28630, 37219, 48262, 53170, 53690, 74438, 120655, 168917, 186095, 241310, 313703, 337834, 372190, 627406, 844585, 1568515, 1689170, 2195921, 3137030, 4391842, 10979605, 21959210]

約数ペア:

[(1, 21959210), (2, 10979605), (5, 4391842), (7, 3137030), (10, 2195921), (13, 1689170), (14, 1568515), (26, 844585), (35, 627406), (59, 372190), (65, 337834), (70, 313703), (91, 241310), (118, 186095), (130, 168917), (182, 120655), (295, 74438), (409, 53690), (413, 53170), (455, 48262), (590, 37219), (767, 28630), (818, 26845), (826, 26585), (910, 24131), (1534, 14315), (2045, 10738), (2065, 10634), (2863, 7670), (3835, 5726), (4090, 5369), (4130, 5317)]