21337185

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 14305695

約数列:

[1, 3, 5, 15, 29, 87, 145, 181, 271, 435, 543, 813, 905, 1355, 2715, 4065, 5249, 7859, 15747, 23577, 26245, 39295, 49051, 78735, 117885, 147153, 245255, 735765, 1422479, 4267437, 7112395, 21337185]

約数ペア:

[(1, 21337185), (3, 7112395), (5, 4267437), (15, 1422479), (29, 735765), (87, 245255), (145, 147153), (181, 117885), (271, 78735), (435, 49051), (543, 39295), (813, 26245), (905, 23577), (1355, 15747), (2715, 7859), (4065, 5249)]