2720221491

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{25153}}^1$

素因数の和:25275

約数の個数: 32

約数和(自身を含む): 4056837120

約数和(自身を除く): 1336615629

約数列:

[1, 3, 13, 39, 47, 59, 141, 177, 611, 767, 1833, 2301, 2773, 8319, 25153, 36049, 75459, 108147, 326989, 980967, 1182191, 1484027, 3546573, 4452081, 15368483, 19292351, 46105449, 57877053, 69749269, 209247807, 906740497, 2720221491]

約数ペア:

[(1, 2720221491), (3, 906740497), (13, 209247807), (39, 69749269), (47, 57877053), (59, 46105449), (141, 19292351), (177, 15368483), (611, 4452081), (767, 3546573), (1833, 1484027), (2301, 1182191), (2773, 980967), (8319, 326989), (25153, 108147), (36049, 75459)]