18940968

素因数分解:

$2^3\times 3^2\times {\mathrm{503}}^1\times {\mathrm{523}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 51498720

約数和(自身を除く): 32557752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 503, 523, 1006, 1046, 1509, 1569, 2012, 2092, 3018, 3138, 4024, 4184, 4527, 4707, 6036, 6276, 9054, 9414, 12072, 12552, 18108, 18828, 36216, 37656, 263069, 526138, 789207, 1052276, 1578414, 2104552, 2367621, 3156828, 4735242, 6313656, 9470484, 18940968]

約数ペア:

[(1, 18940968), (2, 9470484), (3, 6313656), (4, 4735242), (6, 3156828), (8, 2367621), (9, 2104552), (12, 1578414), (18, 1052276), (24, 789207), (36, 526138), (72, 263069), (503, 37656), (523, 36216), (1006, 18828), (1046, 18108), (1509, 12552), (1569, 12072), (2012, 9414), (2092, 9054), (3018, 6276), (3138, 6036), (4024, 4707), (4184, 4527)]