28259973

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23609}}^1$

素因数の和:23641

約数の個数: 24

約数和(自身を含む): 49108800

約数和(自身を除く): 20848827

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 23609, 70827, 165263, 212481, 448571, 495789, 1345713, 1487367, 3139997, 4037139, 9419991, 28259973]

約数ペア:

[(1, 28259973), (3, 9419991), (7, 4037139), (9, 3139997), (19, 1487367), (21, 1345713), (57, 495789), (63, 448571), (133, 212481), (171, 165263), (399, 70827), (1197, 23609)]