21803260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 48615840

約数和(自身を除く): 26812580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 317, 362, 380, 634, 724, 905, 1268, 1585, 1810, 3170, 3439, 3620, 6023, 6340, 6878, 12046, 13756, 17195, 24092, 30115, 34390, 57377, 60230, 68780, 114754, 120460, 229508, 286885, 573770, 1090163, 1147540, 2180326, 4360652, 5450815, 10901630, 21803260]

約数ペア:

[(1, 21803260), (2, 10901630), (4, 5450815), (5, 4360652), (10, 2180326), (19, 1147540), (20, 1090163), (38, 573770), (76, 286885), (95, 229508), (181, 120460), (190, 114754), (317, 68780), (362, 60230), (380, 57377), (634, 34390), (724, 30115), (905, 24092), (1268, 17195), (1585, 13756), (1810, 12046), (3170, 6878), (3439, 6340), (3620, 6023)]