219921843

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1231}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 323592192

約数和(自身を除く): 103670349

約数列:

[1, 3, 17, 31, 51, 93, 113, 339, 527, 1231, 1581, 1921, 3503, 3693, 5763, 10509, 20927, 38161, 59551, 62781, 114483, 139103, 178653, 417309, 648737, 1946211, 2364751, 4312193, 7094253, 12936579, 73307281, 219921843]

約数ペア:

[(1, 219921843), (3, 73307281), (17, 12936579), (31, 7094253), (51, 4312193), (93, 2364751), (113, 1946211), (339, 648737), (527, 417309), (1231, 178653), (1581, 139103), (1921, 114483), (3503, 62781), (3693, 59551), (5763, 38161), (10509, 20927)]