64821915

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{27179}}^1$

素因数の和:27243

約数の個数: 24

約数和(自身を含む): 114482160

約数和(自身を除く): 49660245

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 27179, 81537, 135895, 244611, 407685, 1223055, 1440487, 4321461, 7202435, 12964383, 21607305, 64821915]

約数ペア:

[(1, 64821915), (3, 21607305), (5, 12964383), (9, 7202435), (15, 4321461), (45, 1440487), (53, 1223055), (159, 407685), (265, 244611), (477, 135895), (795, 81537), (2385, 27179)]