155603721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1\times {\mathrm{971}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 256048128

約数和(自身を除く): 100444407

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 587, 971, 1761, 2913, 4109, 6797, 7631, 12327, 12623, 20391, 22893, 37869, 53417, 88361, 160251, 265083, 569977, 1709931, 3989839, 7409701, 11969517, 22229103, 51867907, 155603721]

約数ペア:

[(1, 155603721), (3, 51867907), (7, 22229103), (13, 11969517), (21, 7409701), (39, 3989839), (91, 1709931), (273, 569977), (587, 265083), (971, 160251), (1761, 88361), (2913, 53417), (4109, 37869), (6797, 22893), (7631, 20391), (12327, 12623)]