21474306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1301}}^1$

素因数の和:1447

約数の個数: 48

約数和(自身を含む): 53621568

約数和(自身を除く): 32147262

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1301, 1834, 2358, 2602, 2751, 3903, 5502, 7806, 8253, 9107, 11709, 16506, 18214, 23418, 27321, 54642, 81963, 163926, 170431, 340862, 511293, 1022586, 1193017, 1533879, 2386034, 3067758, 3579051, 7158102, 10737153, 21474306]

約数ペア:

[(1, 21474306), (2, 10737153), (3, 7158102), (6, 3579051), (7, 3067758), (9, 2386034), (14, 1533879), (18, 1193017), (21, 1022586), (42, 511293), (63, 340862), (126, 170431), (131, 163926), (262, 81963), (393, 54642), (786, 27321), (917, 23418), (1179, 18214), (1301, 16506), (1834, 11709), (2358, 9107), (2602, 8253), (2751, 7806), (3903, 5502)]