21226878

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 48048000

約数和(自身を除く): 26821122

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 109, 186, 218, 279, 327, 349, 558, 654, 698, 981, 1047, 1962, 2094, 3141, 3379, 6282, 6758, 10137, 10819, 20274, 21638, 30411, 32457, 38041, 60822, 64914, 76082, 97371, 114123, 194742, 228246, 342369, 684738, 1179271, 2358542, 3537813, 7075626, 10613439, 21226878]

約数ペア:

[(1, 21226878), (2, 10613439), (3, 7075626), (6, 3537813), (9, 2358542), (18, 1179271), (31, 684738), (62, 342369), (93, 228246), (109, 194742), (186, 114123), (218, 97371), (279, 76082), (327, 64914), (349, 60822), (558, 38041), (654, 32457), (698, 30411), (981, 21638), (1047, 20274), (1962, 10819), (2094, 10137), (3141, 6758), (3379, 6282)]