15880971

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 7343349

約数列:

[1, 3, 23, 47, 59, 69, 83, 141, 177, 249, 1081, 1357, 1909, 2773, 3243, 3901, 4071, 4897, 5727, 8319, 11703, 14691, 63779, 89723, 112631, 191337, 230159, 269169, 337893, 690477, 5293657, 15880971]

約数ペア:

[(1, 15880971), (3, 5293657), (23, 690477), (47, 337893), (59, 269169), (69, 230159), (83, 191337), (141, 112631), (177, 89723), (249, 63779), (1081, 14691), (1357, 11703), (1909, 8319), (2773, 5727), (3243, 4897), (3901, 4071)]