20418844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1553}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 37855440

約数和(自身を除く): 17436596

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 1553, 3106, 3287, 6212, 6574, 13148, 29507, 59014, 118028, 268669, 537338, 1074676, 5104711, 10209422, 20418844]

約数ペア:

[(1, 20418844), (2, 10209422), (4, 5104711), (19, 1074676), (38, 537338), (76, 268669), (173, 118028), (346, 59014), (692, 29507), (1553, 13148), (3106, 6574), (3287, 6212)]