25213209

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2179}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 41856000

約数和(自身を除く): 16642791

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 399, 551, 609, 1653, 2179, 3857, 6537, 11571, 15253, 41401, 45759, 63191, 124203, 189573, 289807, 442337, 869421, 1200629, 1327011, 3601887, 8404403, 25213209]

約数ペア:

[(1, 25213209), (3, 8404403), (7, 3601887), (19, 1327011), (21, 1200629), (29, 869421), (57, 442337), (87, 289807), (133, 189573), (203, 124203), (399, 63191), (551, 45759), (609, 41401), (1653, 15253), (2179, 11571), (3857, 6537)]