21709760

素因数分解:

$2^6\times 5^1\times {\mathrm{67843}}^1$

素因数の和:67860

約数の個数: 28

約数和(自身を含む): 51697128

約数和(自身を除く): 29987368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67843, 135686, 271372, 339215, 542744, 678430, 1085488, 1356860, 2170976, 2713720, 4341952, 5427440, 10854880, 21709760]

約数ペア:

[(1, 21709760), (2, 10854880), (4, 5427440), (5, 4341952), (8, 2713720), (10, 2170976), (16, 1356860), (20, 1085488), (32, 678430), (40, 542744), (64, 339215), (80, 271372), (160, 135686), (320, 67843)]