19215807

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 28038528

約数和(自身を除く): 8822721

約数列:

[1, 3, 13, 39, 151, 169, 251, 453, 507, 753, 1963, 3263, 5889, 9789, 25519, 37901, 42419, 76557, 113703, 127257, 492713, 1478139, 6405269, 19215807]

約数ペア:

[(1, 19215807), (3, 6405269), (13, 1478139), (39, 492713), (151, 127257), (169, 113703), (251, 76557), (453, 42419), (507, 37901), (753, 25519), (1963, 9789), (3263, 5889)]