16809975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:857

約数の個数: 72

約数和(自身を含む): 37101792

約数和(自身を除く): 20291817

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 175, 195, 225, 273, 315, 325, 455, 525, 585, 819, 821, 975, 1365, 1575, 2275, 2463, 2925, 4095, 4105, 5747, 6825, 7389, 10673, 12315, 17241, 20475, 20525, 28735, 32019, 36945, 51723, 53365, 61575, 74711, 86205, 96057, 143675, 160095, 184725, 224133, 258615, 266825, 373555, 431025, 480285, 672399, 800475, 1120665, 1293075, 1867775, 2401425, 3361995, 5603325, 16809975]

約数ペア:

[(1, 16809975), (3, 5603325), (5, 3361995), (7, 2401425), (9, 1867775), (13, 1293075), (15, 1120665), (21, 800475), (25, 672399), (35, 480285), (39, 431025), (45, 373555), (63, 266825), (65, 258615), (75, 224133), (91, 184725), (105, 160095), (117, 143675), (175, 96057), (195, 86205), (225, 74711), (273, 61575), (315, 53365), (325, 51723), (455, 36945), (525, 32019), (585, 28735), (819, 20525), (821, 20475), (975, 17241), (1365, 12315), (1575, 10673), (2275, 7389), (2463, 6825), (2925, 5747), (4095, 4105)]