21004628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{607}}^1$

素因数の和:863

約数の個数: 24

約数和(自身を含む): 37895424

約数和(自身を除く): 16890796

約数列:

[1, 2, 4, 41, 82, 164, 211, 422, 607, 844, 1214, 2428, 8651, 17302, 24887, 34604, 49774, 99548, 128077, 256154, 512308, 5251157, 10502314, 21004628]

約数ペア:

[(1, 21004628), (2, 10502314), (4, 5251157), (41, 512308), (82, 256154), (164, 128077), (211, 99548), (422, 49774), (607, 34604), (844, 24887), (1214, 17302), (2428, 8651)]