21915243

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2083}}^1$

素因数の和:2263

約数の個数: 24

約数和(自身を含む): 36411648

約数和(自身を除く): 14496405

約数列:

[1, 3, 7, 9, 21, 63, 167, 501, 1169, 1503, 2083, 3507, 6249, 10521, 14581, 18747, 43743, 131229, 347861, 1043583, 2435027, 3130749, 7305081, 21915243]

約数ペア:

[(1, 21915243), (3, 7305081), (7, 3130749), (9, 2435027), (21, 1043583), (63, 347861), (167, 131229), (501, 43743), (1169, 18747), (1503, 14581), (2083, 10521), (3507, 6249)]