18258578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 31615920

約数和(自身を除く): 13357342

約数列:

[1, 2, 13, 17, 26, 34, 101, 202, 221, 409, 442, 818, 1313, 1717, 2626, 3434, 5317, 6953, 10634, 13906, 22321, 41309, 44642, 82618, 90389, 180778, 537017, 702253, 1074034, 1404506, 9129289, 18258578]

約数ペア:

[(1, 18258578), (2, 9129289), (13, 1404506), (17, 1074034), (26, 702253), (34, 537017), (101, 180778), (202, 90389), (221, 82618), (409, 44642), (442, 41309), (818, 22321), (1313, 13906), (1717, 10634), (2626, 6953), (3434, 5317)]