20619105

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2579}}^1$

素因数の和:2641

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 15789855

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2579, 2665, 7737, 7995, 12895, 33527, 38685, 100581, 105739, 167635, 317217, 502905, 528695, 1374607, 1586085, 4123821, 6873035, 20619105]

約数ペア:

[(1, 20619105), (3, 6873035), (5, 4123821), (13, 1586085), (15, 1374607), (39, 528695), (41, 502905), (65, 317217), (123, 167635), (195, 105739), (205, 100581), (533, 38685), (615, 33527), (1599, 12895), (2579, 7995), (2665, 7737)]