21357050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 48746880

約数和(自身を除く): 27389830

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 29, 50, 55, 58, 65, 103, 110, 130, 143, 145, 206, 275, 286, 290, 319, 325, 377, 515, 550, 638, 650, 715, 725, 754, 1030, 1133, 1339, 1430, 1450, 1595, 1885, 2266, 2575, 2678, 2987, 3190, 3575, 3770, 4147, 5150, 5665, 5974, 6695, 7150, 7975, 8294, 9425, 11330, 13390, 14729, 14935, 15950, 18850, 20735, 28325, 29458, 29870, 32857, 33475, 38831, 41470, 56650, 65714, 66950, 73645, 74675, 77662, 103675, 147290, 149350, 164285, 194155, 207350, 328570, 368225, 388310, 427141, 736450, 821425, 854282, 970775, 1642850, 1941550, 2135705, 4271410, 10678525, 21357050]

約数ペア:

[(1, 21357050), (2, 10678525), (5, 4271410), (10, 2135705), (11, 1941550), (13, 1642850), (22, 970775), (25, 854282), (26, 821425), (29, 736450), (50, 427141), (55, 388310), (58, 368225), (65, 328570), (103, 207350), (110, 194155), (130, 164285), (143, 149350), (145, 147290), (206, 103675), (275, 77662), (286, 74675), (290, 73645), (319, 66950), (325, 65714), (377, 56650), (515, 41470), (550, 38831), (638, 33475), (650, 32857), (715, 29870), (725, 29458), (754, 28325), (1030, 20735), (1133, 18850), (1339, 15950), (1430, 14935), (1450, 14729), (1595, 13390), (1885, 11330), (2266, 9425), (2575, 8294), (2678, 7975), (2987, 7150), (3190, 6695), (3575, 5974), (3770, 5665), (4147, 5150)]