21048703

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 25909632

約数和(自身を除く): 4860929

約数列:

[1, 13, 17, 23, 41, 101, 221, 299, 391, 533, 697, 943, 1313, 1717, 2323, 4141, 5083, 9061, 12259, 16031, 22321, 30199, 39491, 53833, 70397, 95243, 208403, 513383, 915161, 1238159, 1619131, 21048703]

約数ペア:

[(1, 21048703), (13, 1619131), (17, 1238159), (23, 915161), (41, 513383), (101, 208403), (221, 95243), (299, 70397), (391, 53833), (533, 39491), (697, 30199), (943, 22321), (1313, 16031), (1717, 12259), (2323, 9061), (4141, 5083)]