20866902

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 50995200

約数和(自身を除く): 30128298

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 79, 114, 133, 158, 237, 266, 331, 399, 474, 553, 662, 798, 993, 1106, 1501, 1659, 1986, 2317, 3002, 3318, 4503, 4634, 6289, 6951, 9006, 10507, 12578, 13902, 18867, 21014, 26149, 31521, 37734, 44023, 52298, 63042, 78447, 88046, 132069, 156894, 183043, 264138, 366086, 496831, 549129, 993662, 1098258, 1490493, 2980986, 3477817, 6955634, 10433451, 20866902]

約数ペア:

[(1, 20866902), (2, 10433451), (3, 6955634), (6, 3477817), (7, 2980986), (14, 1490493), (19, 1098258), (21, 993662), (38, 549129), (42, 496831), (57, 366086), (79, 264138), (114, 183043), (133, 156894), (158, 132069), (237, 88046), (266, 78447), (331, 63042), (399, 52298), (474, 44023), (553, 37734), (662, 31521), (798, 26149), (993, 21014), (1106, 18867), (1501, 13902), (1659, 12578), (1986, 10507), (2317, 9006), (3002, 6951), (3318, 6289), (4503, 4634)]