211620105

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{5231}}^1$

素因数の和:5302

約数の個数: 48

約数和(自身を含む): 391772160

約数和(自身を除く): 180152055

約数列:

[1, 3, 5, 9, 15, 29, 31, 45, 87, 93, 145, 155, 261, 279, 435, 465, 899, 1305, 1395, 2697, 4495, 5231, 8091, 13485, 15693, 26155, 40455, 47079, 78465, 151699, 162161, 235395, 455097, 486483, 758495, 810805, 1365291, 1459449, 2275485, 2432415, 4702669, 6826455, 7297245, 14108007, 23513345, 42324021, 70540035, 211620105]

約数ペア:

[(1, 211620105), (3, 70540035), (5, 42324021), (9, 23513345), (15, 14108007), (29, 7297245), (31, 6826455), (45, 4702669), (87, 2432415), (93, 2275485), (145, 1459449), (155, 1365291), (261, 810805), (279, 758495), (435, 486483), (465, 455097), (899, 235395), (1305, 162161), (1395, 151699), (2697, 78465), (4495, 47079), (5231, 40455), (8091, 26155), (13485, 15693)]