21875769

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 32722560

約数和(自身を除く): 10846791

約数列:

[1, 3, 9, 37, 111, 179, 333, 367, 537, 1101, 1611, 3303, 6623, 13579, 19869, 40737, 59607, 65693, 122211, 197079, 591237, 2430641, 7291923, 21875769]

約数ペア:

[(1, 21875769), (3, 7291923), (9, 2430641), (37, 591237), (111, 197079), (179, 122211), (333, 65693), (367, 59607), (537, 40737), (1101, 19869), (1611, 13579), (3303, 6623)]