21026650

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5923}}^1$

素因数の和:6006

約数の個数: 24

約数和(自身を含む): 39667104

約数和(自身を除く): 18640454

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5923, 11846, 29615, 59230, 148075, 296150, 420533, 841066, 2102665, 4205330, 10513325, 21026650]

約数ペア:

[(1, 21026650), (2, 10513325), (5, 4205330), (10, 2102665), (25, 841066), (50, 420533), (71, 296150), (142, 148075), (355, 59230), (710, 29615), (1775, 11846), (3550, 5923)]