21403516

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1709}}^1$

素因数の和:1845

約数の個数: 24

約数和(自身を含む): 39070080

約数和(自身を除く): 17666564

約数列:

[1, 2, 4, 31, 62, 101, 124, 202, 404, 1709, 3131, 3418, 6262, 6836, 12524, 52979, 105958, 172609, 211916, 345218, 690436, 5350879, 10701758, 21403516]

約数ペア:

[(1, 21403516), (2, 10701758), (4, 5350879), (31, 690436), (62, 345218), (101, 211916), (124, 172609), (202, 105958), (404, 52979), (1709, 12524), (3131, 6836), (3418, 6262)]