21472133090

素因数分解:

$2^1\times 5^1\times {\mathrm{3911}}^1\times {\mathrm{549019}}^1$

素因数の和:552937

約数の個数: 16

約数和(自身を含む): 38659792320

約数和(自身を除く): 17187659230

約数列:

[1, 2, 5, 10, 3911, 7822, 19555, 39110, 549019, 1098038, 2745095, 5490190, 2147213309, 4294426618, 10736066545, 21472133090]

約数ペア:

[(1, 21472133090), (2, 10736066545), (5, 4294426618), (10, 2147213309), (3911, 5490190), (7822, 2745095), (19555, 1098038), (39110, 549019)]