21279366

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 48016800

約数和(自身を除く): 26737434

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 89, 111, 178, 222, 267, 333, 359, 534, 666, 718, 801, 1077, 1602, 2154, 3231, 3293, 6462, 6586, 9879, 13283, 19758, 26566, 29637, 31951, 39849, 59274, 63902, 79698, 95853, 119547, 191706, 239094, 287559, 575118, 1182187, 2364374, 3546561, 7093122, 10639683, 21279366]

約数ペア:

[(1, 21279366), (2, 10639683), (3, 7093122), (6, 3546561), (9, 2364374), (18, 1182187), (37, 575118), (74, 287559), (89, 239094), (111, 191706), (178, 119547), (222, 95853), (267, 79698), (333, 63902), (359, 59274), (534, 39849), (666, 31951), (718, 29637), (801, 26566), (1077, 19758), (1602, 13283), (2154, 9879), (3231, 6586), (3293, 6462)]