20756445

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13717155

約数列:

[1, 3, 5, 15, 37, 111, 149, 185, 251, 447, 555, 745, 753, 1255, 2235, 3765, 5513, 9287, 16539, 27565, 27861, 37399, 46435, 82695, 112197, 139305, 186995, 560985, 1383763, 4151289, 6918815, 20756445]

約数ペア:

[(1, 20756445), (3, 6918815), (5, 4151289), (15, 1383763), (37, 560985), (111, 186995), (149, 139305), (185, 112197), (251, 82695), (447, 46435), (555, 37399), (745, 27861), (753, 27565), (1255, 16539), (2235, 9287), (3765, 5513)]