21954375

素因数分解:

$3^3\times 5^4\times {\mathrm{1301}}^1$

素因数の和:1330

約数の個数: 40

約数和(自身を含む): 40674480

約数和(自身を除く): 18720105

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1301, 1875, 3375, 3903, 5625, 6505, 11709, 16875, 19515, 32525, 35127, 58545, 97575, 162625, 175635, 292725, 487875, 813125, 878175, 1463625, 2439375, 4390875, 7318125, 21954375]

約数ペア:

[(1, 21954375), (3, 7318125), (5, 4390875), (9, 2439375), (15, 1463625), (25, 878175), (27, 813125), (45, 487875), (75, 292725), (125, 175635), (135, 162625), (225, 97575), (375, 58545), (625, 35127), (675, 32525), (1125, 19515), (1301, 16875), (1875, 11709), (3375, 6505), (3903, 5625)]