21817369565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{43457}}^1$

素因数の和:43613

約数の個数: 32

約数和(自身を含む): 28035624960

約数和(自身を除く): 6218255395

約数列:

[1, 5, 31, 41, 79, 155, 205, 395, 1271, 2449, 3239, 6355, 12245, 16195, 43457, 100409, 217285, 502045, 1347167, 1781737, 3433103, 6735835, 8908685, 17165515, 55233847, 106426193, 140757223, 276169235, 532130965, 703786115, 4363473913, 21817369565]

約数ペア:

[(1, 21817369565), (5, 4363473913), (31, 703786115), (41, 532130965), (79, 276169235), (155, 140757223), (205, 106426193), (395, 55233847), (1271, 17165515), (2449, 8908685), (3239, 6735835), (6355, 3433103), (12245, 1781737), (16195, 1347167), (43457, 502045), (100409, 217285)]