21418259380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{656599}}^1$

素因数の和:656848

約数の個数: 48

約数和(自身を含む): 51624518400

約数和(自身を除く): 30206259020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 932, 1165, 1631, 2330, 3262, 4660, 6524, 8155, 16310, 32620, 656599, 1313198, 2626396, 3282995, 4596193, 6565990, 9192386, 13131980, 18384772, 22980965, 45961930, 91923860, 152987567, 305975134, 611950268, 764937835, 1070912969, 1529875670, 2141825938, 3059751340, 4283651876, 5354564845, 10709129690, 21418259380]

約数ペア:

[(1, 21418259380), (2, 10709129690), (4, 5354564845), (5, 4283651876), (7, 3059751340), (10, 2141825938), (14, 1529875670), (20, 1070912969), (28, 764937835), (35, 611950268), (70, 305975134), (140, 152987567), (233, 91923860), (466, 45961930), (932, 22980965), (1165, 18384772), (1631, 13131980), (2330, 9192386), (3262, 6565990), (4660, 4596193), (6524, 3282995), (8155, 2626396), (16310, 1313198), (32620, 656599)]