21577290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2777}}^1$

素因数の和:2831

約数の個数: 64

約数和(自身を含む): 60804864

約数和(自身を除く): 39227574

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 2590, 2777, 3885, 5554, 7770, 8331, 13885, 16662, 19439, 27770, 38878, 41655, 58317, 83310, 97195, 102749, 116634, 194390, 205498, 291585, 308247, 513745, 583170, 616494, 719243, 1027490, 1438486, 1541235, 2157729, 3082470, 3596215, 4315458, 7192430, 10788645, 21577290]

約数ペア:

[(1, 21577290), (2, 10788645), (3, 7192430), (5, 4315458), (6, 3596215), (7, 3082470), (10, 2157729), (14, 1541235), (15, 1438486), (21, 1027490), (30, 719243), (35, 616494), (37, 583170), (42, 513745), (70, 308247), (74, 291585), (105, 205498), (111, 194390), (185, 116634), (210, 102749), (222, 97195), (259, 83310), (370, 58317), (518, 41655), (555, 38878), (777, 27770), (1110, 19439), (1295, 16662), (1554, 13885), (2590, 8331), (2777, 7770), (3885, 5554)]