18789858

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 42414840

約数和(自身を除く): 23624982

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 89, 111, 178, 222, 267, 317, 333, 534, 634, 666, 801, 951, 1602, 1902, 2853, 3293, 5706, 6586, 9879, 11729, 19758, 23458, 28213, 29637, 35187, 56426, 59274, 70374, 84639, 105561, 169278, 211122, 253917, 507834, 1043881, 2087762, 3131643, 6263286, 9394929, 18789858]

約数ペア:

[(1, 18789858), (2, 9394929), (3, 6263286), (6, 3131643), (9, 2087762), (18, 1043881), (37, 507834), (74, 253917), (89, 211122), (111, 169278), (178, 105561), (222, 84639), (267, 70374), (317, 59274), (333, 56426), (534, 35187), (634, 29637), (666, 28213), (801, 23458), (951, 19758), (1602, 11729), (1902, 9879), (2853, 6586), (3293, 5706)]