21887415

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3$

素因数の和:79

約数の個数: 80

約数和(自身を含む): 45476640

約数和(自身を除く): 23589225

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 81, 85, 99, 135, 153, 165, 187, 255, 289, 297, 405, 459, 495, 561, 765, 867, 891, 935, 1377, 1445, 1485, 1683, 2295, 2601, 2805, 3179, 4335, 4455, 4913, 5049, 6885, 7803, 8415, 9537, 13005, 14739, 15147, 15895, 23409, 24565, 25245, 28611, 39015, 44217, 47685, 54043, 73695, 75735, 85833, 117045, 132651, 143055, 162129, 221085, 257499, 270215, 397953, 429165, 486387, 663255, 810645, 1287495, 1459161, 1989765, 2431935, 4377483, 7295805, 21887415]

約数ペア:

[(1, 21887415), (3, 7295805), (5, 4377483), (9, 2431935), (11, 1989765), (15, 1459161), (17, 1287495), (27, 810645), (33, 663255), (45, 486387), (51, 429165), (55, 397953), (81, 270215), (85, 257499), (99, 221085), (135, 162129), (153, 143055), (165, 132651), (187, 117045), (255, 85833), (289, 75735), (297, 73695), (405, 54043), (459, 47685), (495, 44217), (561, 39015), (765, 28611), (867, 25245), (891, 24565), (935, 23409), (1377, 15895), (1445, 15147), (1485, 14739), (1683, 13005), (2295, 9537), (2601, 8415), (2805, 7803), (3179, 6885), (4335, 5049), (4455, 4913)]