20524665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4159}}^1$

素因数の和:4221

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 17813895

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4159, 4935, 12477, 20795, 29113, 62385, 87339, 145565, 195473, 436695, 586419, 977365, 1368311, 2932095, 4104933, 6841555, 20524665]

約数ペア:

[(1, 20524665), (3, 6841555), (5, 4104933), (7, 2932095), (15, 1368311), (21, 977365), (35, 586419), (47, 436695), (105, 195473), (141, 145565), (235, 87339), (329, 62385), (705, 29113), (987, 20795), (1645, 12477), (4159, 4935)]