21876008

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2089}}^1$

素因数の和:2130

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 32296792

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 616, 748, 952, 1309, 1496, 2089, 2618, 4178, 5236, 8356, 10472, 14623, 16712, 22979, 29246, 35513, 45958, 58492, 71026, 91916, 116984, 142052, 160853, 183832, 248591, 284104, 321706, 390643, 497182, 643412, 781286, 994364, 1286824, 1562572, 1988728, 2734501, 3125144, 5469002, 10938004, 21876008]

約数ペア:

[(1, 21876008), (2, 10938004), (4, 5469002), (7, 3125144), (8, 2734501), (11, 1988728), (14, 1562572), (17, 1286824), (22, 994364), (28, 781286), (34, 643412), (44, 497182), (56, 390643), (68, 321706), (77, 284104), (88, 248591), (119, 183832), (136, 160853), (154, 142052), (187, 116984), (238, 91916), (308, 71026), (374, 58492), (476, 45958), (616, 35513), (748, 29246), (952, 22979), (1309, 16712), (1496, 14623), (2089, 10472), (2618, 8356), (4178, 5236)]