21311994

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2357}}^1$

素因数の和:2510

約数の個数: 32

約数和(自身を含む): 46858176

約数和(自身を除く): 25546182

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 137, 274, 411, 822, 1507, 2357, 3014, 4521, 4714, 7071, 9042, 14142, 25927, 51854, 77781, 155562, 322909, 645818, 968727, 1937454, 3551999, 7103998, 10655997, 21311994]

約数ペア:

[(1, 21311994), (2, 10655997), (3, 7103998), (6, 3551999), (11, 1937454), (22, 968727), (33, 645818), (66, 322909), (137, 155562), (274, 77781), (411, 51854), (822, 25927), (1507, 14142), (2357, 9042), (3014, 7071), (4521, 4714)]