19701786

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1103}}^1$

素因数の和:1350

約数の個数: 32

約数和(自身を含む): 42658560

約数和(自身を除く): 22956774

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 229, 458, 687, 1103, 1374, 2206, 2977, 3309, 5954, 6618, 8931, 14339, 17862, 28678, 43017, 86034, 252587, 505174, 757761, 1515522, 3283631, 6567262, 9850893, 19701786]

約数ペア:

[(1, 19701786), (2, 9850893), (3, 6567262), (6, 3283631), (13, 1515522), (26, 757761), (39, 505174), (78, 252587), (229, 86034), (458, 43017), (687, 28678), (1103, 17862), (1374, 14339), (2206, 8931), (2977, 6618), (3309, 5954)]