21235900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1319}}^1$

素因数の和:1363

約数の個数: 72

約数和(自身を含む): 54996480

約数和(自身を除く): 33760580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1319, 1610, 2300, 2638, 3220, 4025, 5276, 6595, 8050, 9233, 13190, 16100, 18466, 26380, 30337, 32975, 36932, 46165, 60674, 65950, 92330, 121348, 131900, 151685, 184660, 212359, 230825, 303370, 424718, 461650, 606740, 758425, 849436, 923300, 1061795, 1516850, 2123590, 3033700, 4247180, 5308975, 10617950, 21235900]

約数ペア:

[(1, 21235900), (2, 10617950), (4, 5308975), (5, 4247180), (7, 3033700), (10, 2123590), (14, 1516850), (20, 1061795), (23, 923300), (25, 849436), (28, 758425), (35, 606740), (46, 461650), (50, 424718), (70, 303370), (92, 230825), (100, 212359), (115, 184660), (140, 151685), (161, 131900), (175, 121348), (230, 92330), (322, 65950), (350, 60674), (460, 46165), (575, 36932), (644, 32975), (700, 30337), (805, 26380), (1150, 18466), (1319, 16100), (1610, 13190), (2300, 9233), (2638, 8050), (3220, 6595), (4025, 5276)]