21802245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 37210752

約数和(自身を除く): 15408507

約数列:

[1, 3, 5, 15, 17, 51, 85, 193, 255, 443, 579, 965, 1329, 2215, 2895, 3281, 6645, 7531, 9843, 16405, 22593, 37655, 49215, 85499, 112965, 256497, 427495, 1282485, 1453483, 4360449, 7267415, 21802245]

約数ペア:

[(1, 21802245), (3, 7267415), (5, 4360449), (15, 1453483), (17, 1282485), (51, 427495), (85, 256497), (193, 112965), (255, 85499), (443, 49215), (579, 37655), (965, 22593), (1329, 16405), (2215, 9843), (2895, 7531), (3281, 6645)]