20129865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4079}}^1$

素因数の和:4141

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 17471415

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4079, 4935, 12237, 20395, 28553, 61185, 85659, 142765, 191713, 428295, 575139, 958565, 1341991, 2875695, 4025973, 6709955, 20129865]

約数ペア:

[(1, 20129865), (3, 6709955), (5, 4025973), (7, 2875695), (15, 1341991), (21, 958565), (35, 575139), (47, 428295), (105, 191713), (141, 142765), (235, 85659), (329, 61185), (705, 28553), (987, 20395), (1645, 12237), (4079, 4935)]