19705413

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 15776187

約数列:

[1, 3, 7, 13, 19, 21, 29, 39, 57, 87, 91, 131, 133, 203, 247, 273, 377, 393, 399, 551, 609, 741, 917, 1131, 1653, 1703, 1729, 2489, 2639, 2751, 3799, 3857, 5109, 5187, 7163, 7467, 7917, 11397, 11571, 11921, 17423, 21489, 26593, 32357, 35763, 49387, 50141, 52269, 72181, 79779, 97071, 148161, 150423, 216543, 226499, 345709, 505267, 679497, 938353, 1037127, 1515801, 2815059, 6568471, 19705413]

約数ペア:

[(1, 19705413), (3, 6568471), (7, 2815059), (13, 1515801), (19, 1037127), (21, 938353), (29, 679497), (39, 505267), (57, 345709), (87, 226499), (91, 216543), (131, 150423), (133, 148161), (203, 97071), (247, 79779), (273, 72181), (377, 52269), (393, 50141), (399, 49387), (551, 35763), (609, 32357), (741, 26593), (917, 21489), (1131, 17423), (1653, 11921), (1703, 11571), (1729, 11397), (2489, 7917), (2639, 7467), (2751, 7163), (3799, 5187), (3857, 5109)]