21089934

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 47331648

約数和(自身を除く): 26241714

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 97, 141, 194, 257, 282, 291, 423, 514, 582, 771, 846, 873, 1542, 1746, 2313, 4559, 4626, 9118, 12079, 13677, 24158, 24929, 27354, 36237, 41031, 49858, 72474, 74787, 82062, 108711, 149574, 217422, 224361, 448722, 1171663, 2343326, 3514989, 7029978, 10544967, 21089934]

約数ペア:

[(1, 21089934), (2, 10544967), (3, 7029978), (6, 3514989), (9, 2343326), (18, 1171663), (47, 448722), (94, 224361), (97, 217422), (141, 149574), (194, 108711), (257, 82062), (282, 74787), (291, 72474), (423, 49858), (514, 41031), (582, 36237), (771, 27354), (846, 24929), (873, 24158), (1542, 13677), (1746, 12079), (2313, 9118), (4559, 4626)]