21674270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 18968290

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 503, 695, 1006, 1390, 2515, 4309, 5030, 8618, 15593, 21545, 31186, 43090, 69917, 77965, 139834, 155930, 349585, 699170, 2167427, 4334854, 10837135, 21674270]

約数ペア:

[(1, 21674270), (2, 10837135), (5, 4334854), (10, 2167427), (31, 699170), (62, 349585), (139, 155930), (155, 139834), (278, 77965), (310, 69917), (503, 43090), (695, 31186), (1006, 21545), (1390, 15593), (2515, 8618), (4309, 5030)]