21956865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2647}}^1$

素因数の和:2741

約数の個数: 32

約数和(自身を含む): 40673280

約数和(自身を除く): 18716415

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2647, 2765, 7941, 8295, 13235, 18529, 39705, 55587, 92645, 209113, 277935, 627339, 1045565, 1463791, 3136695, 4391373, 7318955, 21956865]

約数ペア:

[(1, 21956865), (3, 7318955), (5, 4391373), (7, 3136695), (15, 1463791), (21, 1045565), (35, 627339), (79, 277935), (105, 209113), (237, 92645), (395, 55587), (553, 39705), (1185, 18529), (1659, 13235), (2647, 8295), (2765, 7941)]