21263294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:764

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 15659746

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 442, 659, 949, 1241, 1318, 1898, 2482, 8567, 11203, 16133, 17134, 22406, 32266, 48107, 96214, 145639, 291278, 625391, 817819, 1250782, 1635638, 10631647, 21263294]

約数ペア:

[(1, 21263294), (2, 10631647), (13, 1635638), (17, 1250782), (26, 817819), (34, 625391), (73, 291278), (146, 145639), (221, 96214), (442, 48107), (659, 32266), (949, 22406), (1241, 17134), (1318, 16133), (1898, 11203), (2482, 8567)]