21117383

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 26372304

約数和(自身を除く): 5254921

約数列:

[1, 7, 17, 49, 101, 119, 251, 707, 833, 1717, 1757, 4267, 4949, 12019, 12299, 25351, 29869, 84133, 177457, 209083, 430967, 1242199, 3016769, 21117383]

約数ペア:

[(1, 21117383), (7, 3016769), (17, 1242199), (49, 430967), (101, 209083), (119, 177457), (251, 84133), (707, 29869), (833, 25351), (1717, 12299), (1757, 12019), (4267, 4949)]