21705628

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1877}}^1$

素因数の和:1954

約数の個数: 36

約数和(自身を含む): 44959320

約数和(自身を除く): 23253692

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 196, 236, 413, 826, 1652, 1877, 2891, 3754, 5782, 7508, 11564, 13139, 26278, 52556, 91973, 110743, 183946, 221486, 367892, 442972, 775201, 1550402, 3100804, 5426407, 10852814, 21705628]

約数ペア:

[(1, 21705628), (2, 10852814), (4, 5426407), (7, 3100804), (14, 1550402), (28, 775201), (49, 442972), (59, 367892), (98, 221486), (118, 183946), (196, 110743), (236, 91973), (413, 52556), (826, 26278), (1652, 13139), (1877, 11564), (2891, 7508), (3754, 5782)]