18853947

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{829}}^1$

素因数の和:880

約数の個数: 36

約数和(自身を含む): 32887920

約数和(自身を除く): 14033973

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 829, 1083, 1197, 2487, 2527, 3249, 5803, 7461, 7581, 15751, 17409, 22743, 47253, 52227, 110257, 141759, 299269, 330771, 897807, 992313, 2094883, 2693421, 6284649, 18853947]

約数ペア:

[(1, 18853947), (3, 6284649), (7, 2693421), (9, 2094883), (19, 992313), (21, 897807), (57, 330771), (63, 299269), (133, 141759), (171, 110257), (361, 52227), (399, 47253), (829, 22743), (1083, 17409), (1197, 15751), (2487, 7581), (2527, 7461), (3249, 5803)]