18659056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:953

約数の個数: 40

約数和(自身を含む): 39337760

約数和(自身を除く): 20678704

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 823, 872, 1417, 1646, 1744, 2834, 3292, 5668, 6584, 10699, 11336, 13168, 21398, 22672, 42796, 85592, 89707, 171184, 179414, 358828, 717656, 1166191, 1435312, 2332382, 4664764, 9329528, 18659056]

約数ペア:

[(1, 18659056), (2, 9329528), (4, 4664764), (8, 2332382), (13, 1435312), (16, 1166191), (26, 717656), (52, 358828), (104, 179414), (109, 171184), (208, 89707), (218, 85592), (436, 42796), (823, 22672), (872, 21398), (1417, 13168), (1646, 11336), (1744, 10699), (2834, 6584), (3292, 5668)]