21020804732

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1\times {\mathrm{2503}}^1$

素因数の和:3018

約数の個数: 48

約数和(自身を含む): 38018652672

約数和(自身を除く): 16997847940

約数列:

[1, 2, 4, 43, 86, 157, 172, 311, 314, 622, 628, 1244, 2503, 5006, 6751, 10012, 13373, 13502, 26746, 27004, 48827, 53492, 97654, 107629, 195308, 215258, 392971, 430516, 778433, 785942, 1556866, 1571884, 2099561, 3113732, 4199122, 8398244, 16897753, 33472619, 33795506, 66945238, 67591012, 122213981, 133890476, 244427962, 488855924, 5255201183, 10510402366, 21020804732]

約数ペア:

[(1, 21020804732), (2, 10510402366), (4, 5255201183), (43, 488855924), (86, 244427962), (157, 133890476), (172, 122213981), (311, 67591012), (314, 66945238), (622, 33795506), (628, 33472619), (1244, 16897753), (2503, 8398244), (5006, 4199122), (6751, 3113732), (10012, 2099561), (13373, 1571884), (13502, 1556866), (26746, 785942), (27004, 778433), (48827, 430516), (53492, 392971), (97654, 215258), (107629, 195308)]