21925305

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 40182480

約数和(自身を除く): 18257175

約数列:

[1, 3, 5, 9, 15, 29, 45, 53, 87, 145, 159, 261, 265, 317, 435, 477, 795, 951, 1305, 1537, 1585, 2385, 2853, 4611, 4755, 7685, 9193, 13833, 14265, 16801, 23055, 27579, 45965, 50403, 69165, 82737, 84005, 137895, 151209, 252015, 413685, 487229, 756045, 1461687, 2436145, 4385061, 7308435, 21925305]

約数ペア:

[(1, 21925305), (3, 7308435), (5, 4385061), (9, 2436145), (15, 1461687), (29, 756045), (45, 487229), (53, 413685), (87, 252015), (145, 151209), (159, 137895), (261, 84005), (265, 82737), (317, 69165), (435, 50403), (477, 45965), (795, 27579), (951, 23055), (1305, 16801), (1537, 14265), (1585, 13833), (2385, 9193), (2853, 7685), (4611, 4755)]