19772865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1531}}^1$

素因数の和:1590

約数の個数: 48

約数和(自身を含む): 40150656

約数和(自身を除く): 20377791

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 63, 105, 123, 205, 287, 315, 369, 615, 861, 1435, 1531, 1845, 2583, 4305, 4593, 7655, 10717, 12915, 13779, 22965, 32151, 53585, 62771, 68895, 96453, 160755, 188313, 313855, 439397, 482265, 564939, 941565, 1318191, 2196985, 2824695, 3954573, 6590955, 19772865]

約数ペア:

[(1, 19772865), (3, 6590955), (5, 3954573), (7, 2824695), (9, 2196985), (15, 1318191), (21, 941565), (35, 564939), (41, 482265), (45, 439397), (63, 313855), (105, 188313), (123, 160755), (205, 96453), (287, 68895), (315, 62771), (369, 53585), (615, 32151), (861, 22965), (1435, 13779), (1531, 12915), (1845, 10717), (2583, 7655), (4305, 4593)]