19668825

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{883}}^1$

素因数の和:916

約数の個数: 60

約数和(自身を含む): 39790608

約数和(自身を除く): 20121783

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 135, 165, 225, 275, 297, 405, 495, 675, 825, 883, 891, 1485, 2025, 2475, 2649, 4415, 4455, 7425, 7947, 9713, 13245, 22075, 22275, 23841, 29139, 39735, 48565, 66225, 71523, 87417, 119205, 145695, 198675, 242825, 262251, 357615, 437085, 596025, 728475, 786753, 1311255, 1788075, 2185425, 3933765, 6556275, 19668825]

約数ペア:

[(1, 19668825), (3, 6556275), (5, 3933765), (9, 2185425), (11, 1788075), (15, 1311255), (25, 786753), (27, 728475), (33, 596025), (45, 437085), (55, 357615), (75, 262251), (81, 242825), (99, 198675), (135, 145695), (165, 119205), (225, 87417), (275, 71523), (297, 66225), (405, 48565), (495, 39735), (675, 29139), (825, 23841), (883, 22275), (891, 22075), (1485, 13245), (2025, 9713), (2475, 7947), (2649, 7425), (4415, 4455)]