21000612320

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1274309}}^1$

素因数の和:1274427

約数の個数: 48

約数和(自身を含む): 50095674720

約数和(自身を除く): 29095062400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1648, 2060, 3296, 4120, 8240, 16480, 1274309, 2548618, 5097236, 6371545, 10194472, 12743090, 20388944, 25486180, 40777888, 50972360, 101944720, 131253827, 203889440, 262507654, 525015308, 656269135, 1050030616, 1312538270, 2100061232, 2625076540, 4200122464, 5250153080, 10500306160, 21000612320]

約数ペア:

[(1, 21000612320), (2, 10500306160), (4, 5250153080), (5, 4200122464), (8, 2625076540), (10, 2100061232), (16, 1312538270), (20, 1050030616), (32, 656269135), (40, 525015308), (80, 262507654), (103, 203889440), (160, 131253827), (206, 101944720), (412, 50972360), (515, 40777888), (824, 25486180), (1030, 20388944), (1648, 12743090), (2060, 10194472), (3296, 6371545), (4120, 5097236), (8240, 2548618), (16480, 1274309)]