211542015

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1429}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 345945600

約数和(自身を除く): 134403585

約数列:

[1, 3, 5, 15, 71, 139, 213, 355, 417, 695, 1065, 1429, 2085, 4287, 7145, 9869, 21435, 29607, 49345, 101459, 148035, 198631, 304377, 507295, 595893, 993155, 1521885, 2979465, 14102801, 42308403, 70514005, 211542015]

約数ペア:

[(1, 211542015), (3, 70514005), (5, 42308403), (15, 14102801), (71, 2979465), (139, 1521885), (213, 993155), (355, 595893), (417, 507295), (695, 304377), (1065, 198631), (1429, 148035), (2085, 101459), (4287, 49345), (7145, 29607), (9869, 21435)]