16971825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 30692480

約数和(自身を除く): 13720655

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 103, 169, 195, 309, 325, 507, 515, 845, 975, 1339, 1545, 2197, 2535, 2575, 4017, 4225, 6591, 6695, 7725, 10985, 12675, 17407, 20085, 32955, 33475, 52221, 54925, 87035, 100425, 164775, 226291, 261105, 435175, 678873, 1131455, 1305525, 3394365, 5657275, 16971825]

約数ペア:

[(1, 16971825), (3, 5657275), (5, 3394365), (13, 1305525), (15, 1131455), (25, 678873), (39, 435175), (65, 261105), (75, 226291), (103, 164775), (169, 100425), (195, 87035), (309, 54925), (325, 52221), (507, 33475), (515, 32955), (845, 20085), (975, 17407), (1339, 12675), (1545, 10985), (2197, 7725), (2535, 6695), (2575, 6591), (4017, 4225)]