21554940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2969}}^1$

素因数の和:3003

約数の個数: 72

約数和(自身を含む): 66361680

約数和(自身を除く): 44806740

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 2969, 3630, 5938, 7260, 8907, 11876, 14845, 17814, 29690, 32659, 35628, 44535, 59380, 65318, 89070, 97977, 130636, 163295, 178140, 195954, 326590, 359249, 391908, 489885, 653180, 718498, 979770, 1077747, 1436996, 1796245, 1959540, 2155494, 3592490, 4310988, 5388735, 7184980, 10777470, 21554940]

約数ペア:

[(1, 21554940), (2, 10777470), (3, 7184980), (4, 5388735), (5, 4310988), (6, 3592490), (10, 2155494), (11, 1959540), (12, 1796245), (15, 1436996), (20, 1077747), (22, 979770), (30, 718498), (33, 653180), (44, 489885), (55, 391908), (60, 359249), (66, 326590), (110, 195954), (121, 178140), (132, 163295), (165, 130636), (220, 97977), (242, 89070), (330, 65318), (363, 59380), (484, 44535), (605, 35628), (660, 32659), (726, 29690), (1210, 17814), (1452, 14845), (1815, 11876), (2420, 8907), (2969, 7260), (3630, 5938)]