21429495

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{877}}^1$

素因数の和:1072

約数の個数: 32

約数和(自身を含む): 38351040

約数和(自身を除く): 16921545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 877, 905, 1629, 2631, 2715, 4385, 4887, 7893, 8145, 13155, 23679, 24435, 39465, 118395, 158737, 476211, 793685, 1428633, 2381055, 4285899, 7143165, 21429495]

約数ペア:

[(1, 21429495), (3, 7143165), (5, 4285899), (9, 2381055), (15, 1428633), (27, 793685), (45, 476211), (135, 158737), (181, 118395), (543, 39465), (877, 24435), (905, 23679), (1629, 13155), (2631, 8145), (2715, 7893), (4385, 4887)]