18179637

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 31080960

約数和(自身を除く): 12901323

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 283, 399, 437, 483, 849, 931, 1127, 1311, 1981, 2793, 3059, 3381, 5377, 5943, 6509, 9177, 13867, 16131, 19527, 21413, 37639, 41601, 45563, 64239, 112917, 123671, 136689, 263473, 318941, 371013, 790419, 865697, 956823, 2597091, 6059879, 18179637]

約数ペア:

[(1, 18179637), (3, 6059879), (7, 2597091), (19, 956823), (21, 865697), (23, 790419), (49, 371013), (57, 318941), (69, 263473), (133, 136689), (147, 123671), (161, 112917), (283, 64239), (399, 45563), (437, 41601), (483, 37639), (849, 21413), (931, 19527), (1127, 16131), (1311, 13867), (1981, 9177), (2793, 6509), (3059, 5943), (3381, 5377)]