21402152

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 41721600

約数和(自身を除く): 20319448

約数列:

[1, 2, 4, 8, 31, 62, 124, 211, 248, 409, 422, 818, 844, 1636, 1688, 3272, 6541, 12679, 13082, 25358, 26164, 50716, 52328, 86299, 101432, 172598, 345196, 690392, 2675269, 5350538, 10701076, 21402152]

約数ペア:

[(1, 21402152), (2, 10701076), (4, 5350538), (8, 2675269), (31, 690392), (62, 345196), (124, 172598), (211, 101432), (248, 86299), (409, 52328), (422, 50716), (818, 26164), (844, 25358), (1636, 13082), (1688, 12679), (3272, 6541)]