21808504

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{143477}}^1$

素因数の和:143502

約数の個数: 16

約数和(自身を含む): 43043400

約数和(自身を除く): 21234896

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 143477, 286954, 573908, 1147816, 2726063, 5452126, 10904252, 21808504]

約数ペア:

[(1, 21808504), (2, 10904252), (4, 5452126), (8, 2726063), (19, 1147816), (38, 573908), (76, 286954), (152, 143477)]