21887490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31721}}^1$

素因数の和:31754

約数の個数: 32

約数和(自身を含む): 54815616

約数和(自身を除く): 32928126

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31721, 63442, 95163, 158605, 190326, 317210, 475815, 729583, 951630, 1459166, 2188749, 3647915, 4377498, 7295830, 10943745, 21887490]

約数ペア:

[(1, 21887490), (2, 10943745), (3, 7295830), (5, 4377498), (6, 3647915), (10, 2188749), (15, 1459166), (23, 951630), (30, 729583), (46, 475815), (69, 317210), (115, 190326), (138, 158605), (230, 95163), (345, 63442), (690, 31721)]