21545979

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{467}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 14096901

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 467, 507, 1183, 1401, 2197, 3269, 3549, 6071, 6591, 9807, 15379, 18213, 42497, 46137, 78923, 127491, 236769, 552461, 1025999, 1657383, 3077997, 7181993, 21545979]

約数ペア:

[(1, 21545979), (3, 7181993), (7, 3077997), (13, 1657383), (21, 1025999), (39, 552461), (91, 236769), (169, 127491), (273, 78923), (467, 46137), (507, 42497), (1183, 18213), (1401, 15379), (2197, 9807), (3269, 6591), (3549, 6071)]