21040506

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{12569}}^1$

素因数の和:12611

約数の個数: 32

約数和(自身を含む): 48268800

約数和(自身を除く): 27228294

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674, 12569, 25138, 37707, 75414, 113121, 226242, 339363, 389639, 678726, 779278, 1168917, 2337834, 3506751, 7013502, 10520253, 21040506]

約数ペア:

[(1, 21040506), (2, 10520253), (3, 7013502), (6, 3506751), (9, 2337834), (18, 1168917), (27, 779278), (31, 678726), (54, 389639), (62, 339363), (93, 226242), (186, 113121), (279, 75414), (558, 37707), (837, 25138), (1674, 12569)]