81981108

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{9001}}^1$

素因数の和:9045

約数の個数: 72

約数和(自身を含む): 235924416

約数和(自身を除く): 153943308

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 44, 46, 66, 69, 92, 99, 132, 138, 198, 207, 253, 276, 396, 414, 506, 759, 828, 1012, 1518, 2277, 3036, 4554, 9001, 9108, 18002, 27003, 36004, 54006, 81009, 99011, 108012, 162018, 198022, 207023, 297033, 324036, 396044, 414046, 594066, 621069, 828092, 891099, 1188132, 1242138, 1782198, 1863207, 2277253, 2484276, 3564396, 3726414, 4554506, 6831759, 7452828, 9109012, 13663518, 20495277, 27327036, 40990554, 81981108]

約数ペア:

[(1, 81981108), (2, 40990554), (3, 27327036), (4, 20495277), (6, 13663518), (9, 9109012), (11, 7452828), (12, 6831759), (18, 4554506), (22, 3726414), (23, 3564396), (33, 2484276), (36, 2277253), (44, 1863207), (46, 1782198), (66, 1242138), (69, 1188132), (92, 891099), (99, 828092), (132, 621069), (138, 594066), (198, 414046), (207, 396044), (253, 324036), (276, 297033), (396, 207023), (414, 198022), (506, 162018), (759, 108012), (828, 99011), (1012, 81009), (1518, 54006), (2277, 36004), (3036, 27003), (4554, 18002), (9001, 9108)]