21092640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43943}}^1$

素因数の和:43961

約数の個数: 48

約数和(自身を含む): 66443328

約数和(自身を除く): 45350688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43943, 87886, 131829, 175772, 219715, 263658, 351544, 439430, 527316, 659145, 703088, 878860, 1054632, 1318290, 1406176, 1757720, 2109264, 2636580, 3515440, 4218528, 5273160, 7030880, 10546320, 21092640]

約数ペア:

[(1, 21092640), (2, 10546320), (3, 7030880), (4, 5273160), (5, 4218528), (6, 3515440), (8, 2636580), (10, 2109264), (12, 1757720), (15, 1406176), (16, 1318290), (20, 1054632), (24, 878860), (30, 703088), (32, 659145), (40, 527316), (48, 439430), (60, 351544), (80, 263658), (96, 219715), (120, 175772), (160, 131829), (240, 87886), (480, 43943)]