12921843

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 20355840

約数和(自身を除く): 7433997

約数列:

[1, 3, 11, 19, 33, 37, 57, 111, 209, 407, 557, 627, 703, 1221, 1671, 2109, 6127, 7733, 10583, 18381, 20609, 23199, 31749, 61827, 116413, 226699, 349239, 391571, 680097, 1174713, 4307281, 12921843]

約数ペア:

[(1, 12921843), (3, 4307281), (11, 1174713), (19, 680097), (33, 391571), (37, 349239), (57, 226699), (111, 116413), (209, 61827), (407, 31749), (557, 23199), (627, 20609), (703, 18381), (1221, 10583), (1671, 7733), (2109, 6127)]