20718810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32887}}^1$

素因数の和:32907

約数の個数: 48

約数和(自身を含む): 61566336

約数和(自身を除く): 40847526

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32887, 65774, 98661, 164435, 197322, 230209, 295983, 328870, 460418, 493305, 591966, 690627, 986610, 1151045, 1381254, 1479915, 2071881, 2302090, 2959830, 3453135, 4143762, 6906270, 10359405, 20718810]

約数ペア:

[(1, 20718810), (2, 10359405), (3, 6906270), (5, 4143762), (6, 3453135), (7, 2959830), (9, 2302090), (10, 2071881), (14, 1479915), (15, 1381254), (18, 1151045), (21, 986610), (30, 690627), (35, 591966), (42, 493305), (45, 460418), (63, 328870), (70, 295983), (90, 230209), (105, 197322), (126, 164435), (210, 98661), (315, 65774), (630, 32887)]