21956402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 15299278

約数列:

[1, 2, 13, 26, 41, 43, 82, 86, 479, 533, 559, 958, 1066, 1118, 1763, 3526, 6227, 12454, 19639, 20597, 22919, 39278, 41194, 45838, 255307, 267761, 510614, 535522, 844477, 1688954, 10978201, 21956402]

約数ペア:

[(1, 21956402), (2, 10978201), (13, 1688954), (26, 844477), (41, 535522), (43, 510614), (82, 267761), (86, 255307), (479, 45838), (533, 41194), (559, 39278), (958, 22919), (1066, 20597), (1118, 19639), (1763, 12454), (3526, 6227)]