21854845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 7498115

約数列:

[1, 5, 19, 31, 41, 95, 155, 181, 205, 589, 779, 905, 1271, 2945, 3439, 3895, 5611, 6355, 7421, 17195, 24149, 28055, 37105, 106609, 120745, 140999, 230051, 533045, 704995, 1150255, 4370969, 21854845]

約数ペア:

[(1, 21854845), (5, 4370969), (19, 1150255), (31, 704995), (41, 533045), (95, 230051), (155, 140999), (181, 120745), (205, 106609), (589, 37105), (779, 28055), (905, 24149), (1271, 17195), (2945, 7421), (3439, 6355), (3895, 5611)]