21172372

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8663}}^1$

素因数の和:8727

約数の個数: 24

約数和(自身を含む): 40755456

約数和(自身を除く): 19583084

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8663, 17326, 34652, 112619, 225238, 407161, 450476, 814322, 1628644, 5293093, 10586186, 21172372]

約数ペア:

[(1, 21172372), (2, 10586186), (4, 5293093), (13, 1628644), (26, 814322), (47, 450476), (52, 407161), (94, 225238), (188, 112619), (611, 34652), (1222, 17326), (2444, 8663)]