19487456

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 40027680

約数和(自身を除く): 20540224

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 109, 148, 151, 218, 296, 302, 436, 592, 604, 872, 1184, 1208, 1744, 2416, 3488, 4033, 4832, 5587, 8066, 11174, 16132, 16459, 22348, 32264, 32918, 44696, 64528, 65836, 89392, 129056, 131672, 178784, 263344, 526688, 608983, 1217966, 2435932, 4871864, 9743728, 19487456]

約数ペア:

[(1, 19487456), (2, 9743728), (4, 4871864), (8, 2435932), (16, 1217966), (32, 608983), (37, 526688), (74, 263344), (109, 178784), (148, 131672), (151, 129056), (218, 89392), (296, 65836), (302, 64528), (436, 44696), (592, 32918), (604, 32264), (872, 22348), (1184, 16459), (1208, 16132), (1744, 11174), (2416, 8066), (3488, 5587), (4033, 4832)]