19472495

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 27979776

約数和(自身を除く): 8507281

約数列:

[1, 5, 7, 31, 35, 131, 137, 155, 217, 655, 685, 917, 959, 1085, 4061, 4247, 4585, 4795, 17947, 20305, 21235, 28427, 29729, 89735, 125629, 142135, 148645, 556357, 628145, 2781785, 3894499, 19472495]

約数ペア:

[(1, 19472495), (5, 3894499), (7, 2781785), (31, 628145), (35, 556357), (131, 148645), (137, 142135), (155, 125629), (217, 89735), (655, 29729), (685, 28427), (917, 21235), (959, 20305), (1085, 17947), (4061, 4795), (4247, 4585)]