21096090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1663

約数の個数: 48

約数和(自身を含む): 55236168

約数和(自身を除く): 34140078

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1413, 1493, 1570, 2355, 2826, 2986, 4479, 4710, 7065, 7465, 8958, 13437, 14130, 14930, 22395, 26874, 44790, 67185, 134370, 234401, 468802, 703203, 1172005, 1406406, 2109609, 2344010, 3516015, 4219218, 7032030, 10548045, 21096090]

約数ペア:

[(1, 21096090), (2, 10548045), (3, 7032030), (5, 4219218), (6, 3516015), (9, 2344010), (10, 2109609), (15, 1406406), (18, 1172005), (30, 703203), (45, 468802), (90, 234401), (157, 134370), (314, 67185), (471, 44790), (785, 26874), (942, 22395), (1413, 14930), (1493, 14130), (1570, 13437), (2355, 8958), (2826, 7465), (2986, 7065), (4479, 4710)]