21729570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 55800576

約数和(自身を除く): 34071006

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 137, 170, 255, 274, 311, 411, 510, 622, 685, 822, 933, 1370, 1555, 1866, 2055, 2329, 3110, 4110, 4658, 4665, 5287, 6987, 9330, 10574, 11645, 13974, 15861, 23290, 26435, 31722, 34935, 42607, 52870, 69870, 79305, 85214, 127821, 158610, 213035, 255642, 426070, 639105, 724319, 1278210, 1448638, 2172957, 3621595, 4345914, 7243190, 10864785, 21729570]

約数ペア:

[(1, 21729570), (2, 10864785), (3, 7243190), (5, 4345914), (6, 3621595), (10, 2172957), (15, 1448638), (17, 1278210), (30, 724319), (34, 639105), (51, 426070), (85, 255642), (102, 213035), (137, 158610), (170, 127821), (255, 85214), (274, 79305), (311, 69870), (411, 52870), (510, 42607), (622, 34935), (685, 31722), (822, 26435), (933, 23290), (1370, 15861), (1555, 13974), (1866, 11645), (2055, 10574), (2329, 9330), (3110, 6987), (4110, 5287), (4658, 4665)]