21591284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37747}}^1$

素因数の和:37775

約数の個数: 24

約数和(自身を含む): 44391648

約数和(自身を除く): 22800364

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37747, 75494, 150988, 415217, 490711, 830434, 981422, 1660868, 1962844, 5397821, 10795642, 21591284]

約数ペア:

[(1, 21591284), (2, 10795642), (4, 5397821), (11, 1962844), (13, 1660868), (22, 981422), (26, 830434), (44, 490711), (52, 415217), (143, 150988), (286, 75494), (572, 37747)]