21023115

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1627

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14919285

約数列:

[1, 3, 5, 15, 29, 31, 87, 93, 145, 155, 435, 465, 899, 1559, 2697, 4495, 4677, 7795, 13485, 23385, 45211, 48329, 135633, 144987, 226055, 241645, 678165, 724935, 1401541, 4204623, 7007705, 21023115]

約数ペア:

[(1, 21023115), (3, 7007705), (5, 4204623), (15, 1401541), (29, 724935), (31, 678165), (87, 241645), (93, 226055), (145, 144987), (155, 135633), (435, 48329), (465, 45211), (899, 23385), (1559, 13485), (2697, 7795), (4495, 4677)]