20933990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:933

約数の個数: 64

約数和(自身を含む): 48549888

約数和(自身を除く): 27615898

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 154, 155, 217, 310, 341, 385, 434, 682, 770, 877, 1085, 1705, 1754, 2170, 2387, 3410, 4385, 4774, 6139, 8770, 9647, 11935, 12278, 19294, 23870, 27187, 30695, 48235, 54374, 61390, 67529, 96470, 135058, 135935, 190309, 271870, 299057, 337645, 380618, 598114, 675290, 951545, 1495285, 1903090, 2093399, 2990570, 4186798, 10466995, 20933990]

約数ペア:

[(1, 20933990), (2, 10466995), (5, 4186798), (7, 2990570), (10, 2093399), (11, 1903090), (14, 1495285), (22, 951545), (31, 675290), (35, 598114), (55, 380618), (62, 337645), (70, 299057), (77, 271870), (110, 190309), (154, 135935), (155, 135058), (217, 96470), (310, 67529), (341, 61390), (385, 54374), (434, 48235), (682, 30695), (770, 27187), (877, 23870), (1085, 19294), (1705, 12278), (1754, 11935), (2170, 9647), (2387, 8770), (3410, 6139), (4385, 4774)]