21581350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 46255968

約数和(自身を除く): 24674618

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 197, 313, 350, 394, 626, 985, 1379, 1565, 1970, 2191, 2758, 3130, 4382, 4925, 6895, 7825, 9850, 10955, 13790, 15650, 21910, 34475, 54775, 61661, 68950, 109550, 123322, 308305, 431627, 616610, 863254, 1541525, 2158135, 3083050, 4316270, 10790675, 21581350]

約数ペア:

[(1, 21581350), (2, 10790675), (5, 4316270), (7, 3083050), (10, 2158135), (14, 1541525), (25, 863254), (35, 616610), (50, 431627), (70, 308305), (175, 123322), (197, 109550), (313, 68950), (350, 61661), (394, 54775), (626, 34475), (985, 21910), (1379, 15650), (1565, 13790), (1970, 10955), (2191, 9850), (2758, 7825), (3130, 6895), (4382, 4925)]