21017850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:600

約数の個数: 96

約数和(自身を含む): 61293696

約数和(自身を除く): 40275846

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 37, 42, 50, 70, 74, 75, 105, 111, 150, 175, 185, 210, 222, 259, 350, 370, 518, 525, 541, 555, 777, 925, 1050, 1082, 1110, 1295, 1554, 1623, 1850, 2590, 2705, 2775, 3246, 3787, 3885, 5410, 5550, 6475, 7574, 7770, 8115, 11361, 12950, 13525, 16230, 18935, 19425, 20017, 22722, 27050, 37870, 38850, 40034, 40575, 56805, 60051, 81150, 94675, 100085, 113610, 120102, 140119, 189350, 200170, 280238, 284025, 300255, 420357, 500425, 568050, 600510, 700595, 840714, 1000850, 1401190, 1501275, 2101785, 3002550, 3502975, 4203570, 7005950, 10508925, 21017850]

約数ペア:

[(1, 21017850), (2, 10508925), (3, 7005950), (5, 4203570), (6, 3502975), (7, 3002550), (10, 2101785), (14, 1501275), (15, 1401190), (21, 1000850), (25, 840714), (30, 700595), (35, 600510), (37, 568050), (42, 500425), (50, 420357), (70, 300255), (74, 284025), (75, 280238), (105, 200170), (111, 189350), (150, 140119), (175, 120102), (185, 113610), (210, 100085), (222, 94675), (259, 81150), (350, 60051), (370, 56805), (518, 40575), (525, 40034), (541, 38850), (555, 37870), (777, 27050), (925, 22722), (1050, 20017), (1082, 19425), (1110, 18935), (1295, 16230), (1554, 13525), (1623, 12950), (1850, 11361), (2590, 8115), (2705, 7770), (2775, 7574), (3246, 6475), (3787, 5550), (3885, 5410)]