21985164

素因数分解:

$2^2\times 3^2\times {\mathrm{610699}}^1$

素因数の和:610709

約数の個数: 18

約数和(自身を含む): 55573700

約数和(自身を除く): 33588536

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 610699, 1221398, 1832097, 2442796, 3664194, 5496291, 7328388, 10992582, 21985164]

約数ペア:

[(1, 21985164), (2, 10992582), (3, 7328388), (4, 5496291), (6, 3664194), (9, 2442796), (12, 1832097), (18, 1221398), (36, 610699)]