21728502

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 49008960

約数和(自身を除く): 27280458

約数列:

[1, 2, 3, 6, 9, 18, 43, 67, 86, 129, 134, 201, 258, 387, 402, 419, 603, 774, 838, 1206, 1257, 2514, 2881, 3771, 5762, 7542, 8643, 17286, 18017, 25929, 28073, 36034, 51858, 54051, 56146, 84219, 108102, 162153, 168438, 252657, 324306, 505314, 1207139, 2414278, 3621417, 7242834, 10864251, 21728502]

約数ペア:

[(1, 21728502), (2, 10864251), (3, 7242834), (6, 3621417), (9, 2414278), (18, 1207139), (43, 505314), (67, 324306), (86, 252657), (129, 168438), (134, 162153), (201, 108102), (258, 84219), (387, 56146), (402, 54051), (419, 51858), (603, 36034), (774, 28073), (838, 25929), (1206, 18017), (1257, 17286), (2514, 8643), (2881, 7542), (3771, 5762)]