31381854

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:809

約数の個数: 48

約数和(自身を含む): 73551888

約数和(自身を除く): 42170034

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 173, 294, 346, 519, 617, 1038, 1211, 1234, 1851, 2422, 3633, 3702, 4319, 7266, 8477, 8638, 12957, 16954, 25431, 25914, 30233, 50862, 60466, 90699, 106741, 181398, 213482, 320223, 640446, 747187, 1494374, 2241561, 4483122, 5230309, 10460618, 15690927, 31381854]

約数ペア:

[(1, 31381854), (2, 15690927), (3, 10460618), (6, 5230309), (7, 4483122), (14, 2241561), (21, 1494374), (42, 747187), (49, 640446), (98, 320223), (147, 213482), (173, 181398), (294, 106741), (346, 90699), (519, 60466), (617, 50862), (1038, 30233), (1211, 25914), (1234, 25431), (1851, 16954), (2422, 12957), (3633, 8638), (3702, 8477), (4319, 7266)]