21462945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2965

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 18350175

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2879, 7455, 8637, 14395, 20153, 43185, 60459, 100765, 204409, 302295, 613227, 1022045, 1430863, 3066135, 4292589, 7154315, 21462945]

約数ペア:

[(1, 21462945), (3, 7154315), (5, 4292589), (7, 3066135), (15, 1430863), (21, 1022045), (35, 613227), (71, 302295), (105, 204409), (213, 100765), (355, 60459), (497, 43185), (1065, 20153), (1491, 14395), (2485, 8637), (2879, 7455)]