21372255

素因数分解:

$3^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{467}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 38733552

約数和(自身を除く): 17361297

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 113, 135, 339, 405, 467, 565, 1017, 1401, 1695, 2335, 3051, 4203, 5085, 7005, 9153, 12609, 15255, 21015, 37827, 45765, 52771, 63045, 158313, 189135, 263855, 474939, 791565, 1424817, 2374695, 4274451, 7124085, 21372255]

約数ペア:

[(1, 21372255), (3, 7124085), (5, 4274451), (9, 2374695), (15, 1424817), (27, 791565), (45, 474939), (81, 263855), (113, 189135), (135, 158313), (339, 63045), (405, 52771), (467, 45765), (565, 37827), (1017, 21015), (1401, 15255), (1695, 12609), (2335, 9153), (3051, 7005), (4203, 5085)]