20313555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2153}}^1$

素因数の和:2215

約数の個数: 32

約数和(自身を含む): 35360064

約数和(自身を除く): 15046509

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2153, 3145, 6459, 9435, 10765, 32295, 36601, 79661, 109803, 183005, 238983, 398305, 549015, 1194915, 1354237, 4062711, 6771185, 20313555]

約数ペア:

[(1, 20313555), (3, 6771185), (5, 4062711), (15, 1354237), (17, 1194915), (37, 549015), (51, 398305), (85, 238983), (111, 183005), (185, 109803), (255, 79661), (555, 36601), (629, 32295), (1887, 10765), (2153, 9435), (3145, 6459)]