18808845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 33988416

約数和(自身を除く): 15179571

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 121, 129, 165, 215, 241, 363, 473, 605, 645, 723, 1205, 1419, 1815, 2365, 2651, 3615, 5203, 7095, 7953, 10363, 13255, 15609, 26015, 29161, 31089, 39765, 51815, 78045, 87483, 113993, 145805, 155445, 341979, 437415, 569965, 1253923, 1709895, 3761769, 6269615, 18808845]

約数ペア:

[(1, 18808845), (3, 6269615), (5, 3761769), (11, 1709895), (15, 1253923), (33, 569965), (43, 437415), (55, 341979), (121, 155445), (129, 145805), (165, 113993), (215, 87483), (241, 78045), (363, 51815), (473, 39765), (605, 31089), (645, 29161), (723, 26015), (1205, 15609), (1419, 13255), (1815, 10363), (2365, 7953), (2651, 7095), (3615, 5203)]