21000836290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{54419}}^1$

素因数の和:54619

約数の個数: 64

約数和(自身を含む): 44667936000

約数和(自身を除く): 23667099710

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 149, 185, 259, 298, 370, 518, 745, 1043, 1295, 1490, 2086, 2590, 5215, 5513, 10430, 11026, 27565, 38591, 54419, 55130, 77182, 108838, 192955, 272095, 380933, 385910, 544190, 761866, 1904665, 2013503, 3809330, 4027006, 8108431, 10067515, 14094521, 16216862, 20135030, 28189042, 40542155, 56759017, 70472605, 81084310, 113518034, 140945210, 283795085, 300011947, 567590170, 600023894, 1500059735, 2100083629, 3000119470, 4200167258, 10500418145, 21000836290]

約数ペア:

[(1, 21000836290), (2, 10500418145), (5, 4200167258), (7, 3000119470), (10, 2100083629), (14, 1500059735), (35, 600023894), (37, 567590170), (70, 300011947), (74, 283795085), (149, 140945210), (185, 113518034), (259, 81084310), (298, 70472605), (370, 56759017), (518, 40542155), (745, 28189042), (1043, 20135030), (1295, 16216862), (1490, 14094521), (2086, 10067515), (2590, 8108431), (5215, 4027006), (5513, 3809330), (10430, 2013503), (11026, 1904665), (27565, 761866), (38591, 544190), (54419, 385910), (55130, 380933), (77182, 272095), (108838, 192955)]