21890730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42923}}^1$

素因数の和:42950

約数の個数: 32

約数和(自身を含む): 55629504

約数和(自身を除く): 33738774

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 42923, 85846, 128769, 214615, 257538, 429230, 643845, 729691, 1287690, 1459382, 2189073, 3648455, 4378146, 7296910, 10945365, 21890730]

約数ペア:

[(1, 21890730), (2, 10945365), (3, 7296910), (5, 4378146), (6, 3648455), (10, 2189073), (15, 1459382), (17, 1287690), (30, 729691), (34, 643845), (51, 429230), (85, 257538), (102, 214615), (170, 128769), (255, 85846), (510, 42923)]