21528414

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 27611586

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 149, 207, 298, 349, 414, 447, 698, 894, 1047, 1341, 2094, 2682, 3141, 3427, 6282, 6854, 8027, 10281, 16054, 20562, 24081, 30843, 48162, 52001, 61686, 72243, 104002, 144486, 156003, 312006, 468009, 936018, 1196023, 2392046, 3588069, 7176138, 10764207, 21528414]

約数ペア:

[(1, 21528414), (2, 10764207), (3, 7176138), (6, 3588069), (9, 2392046), (18, 1196023), (23, 936018), (46, 468009), (69, 312006), (138, 156003), (149, 144486), (207, 104002), (298, 72243), (349, 61686), (414, 52001), (447, 48162), (698, 30843), (894, 24081), (1047, 20562), (1341, 16054), (2094, 10281), (2682, 8027), (3141, 6854), (3427, 6282)]