20876985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{877}}^1$

素因数の和:934

約数の個数: 36

約数和(自身を含む): 37871652

約数和(自身を除く): 16994667

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 877, 1035, 1587, 2631, 2645, 4385, 4761, 7893, 7935, 13155, 20171, 23805, 39465, 60513, 100855, 181539, 302565, 463933, 907695, 1391799, 2319665, 4175397, 6958995, 20876985]

約数ペア:

[(1, 20876985), (3, 6958995), (5, 4175397), (9, 2319665), (15, 1391799), (23, 907695), (45, 463933), (69, 302565), (115, 181539), (207, 100855), (345, 60513), (529, 39465), (877, 23805), (1035, 20171), (1587, 13155), (2631, 7935), (2645, 7893), (4385, 4761)]