21817575

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7459}}^1$

素因数の和:7488

約数の個数: 36

約数和(自身を含む): 42089320

約数和(自身を除く): 20271745

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7459, 22377, 37295, 67131, 96967, 111885, 186475, 290901, 335655, 484835, 559425, 872703, 1454505, 1678275, 2424175, 4363515, 7272525, 21817575]

約数ペア:

[(1, 21817575), (3, 7272525), (5, 4363515), (9, 2424175), (13, 1678275), (15, 1454505), (25, 872703), (39, 559425), (45, 484835), (65, 335655), (75, 290901), (117, 186475), (195, 111885), (225, 96967), (325, 67131), (585, 37295), (975, 22377), (2925, 7459)]