421391895

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{20611}}^1$

素因数の和:20695

約数の個数: 32

約数和(自身を含む): 712350720

約数和(自身を除く): 290958825

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1363, 4089, 6815, 20445, 20611, 61833, 103055, 309165, 597719, 968717, 1793157, 2906151, 2988595, 4843585, 8965785, 14530755, 28092793, 84278379, 140463965, 421391895]

約数ペア:

[(1, 421391895), (3, 140463965), (5, 84278379), (15, 28092793), (29, 14530755), (47, 8965785), (87, 4843585), (141, 2988595), (145, 2906151), (235, 1793157), (435, 968717), (705, 597719), (1363, 309165), (4089, 103055), (6815, 61833), (20445, 20611)]