21858420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3607}}^1$

素因数の和:3720

約数の個数: 48

約数和(自身を含む): 61826688

約数和(自身を除く): 39968268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3607, 6060, 7214, 10821, 14428, 18035, 21642, 36070, 43284, 54105, 72140, 108210, 216420, 364307, 728614, 1092921, 1457228, 1821535, 2185842, 3643070, 4371684, 5464605, 7286140, 10929210, 21858420]

約数ペア:

[(1, 21858420), (2, 10929210), (3, 7286140), (4, 5464605), (5, 4371684), (6, 3643070), (10, 2185842), (12, 1821535), (15, 1457228), (20, 1092921), (30, 728614), (60, 364307), (101, 216420), (202, 108210), (303, 72140), (404, 54105), (505, 43284), (606, 36070), (1010, 21642), (1212, 18035), (1515, 14428), (2020, 10821), (3030, 7214), (3607, 6060)]