18017944

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 22624616

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 97, 107, 124, 194, 214, 217, 248, 388, 428, 434, 679, 749, 776, 856, 868, 1358, 1498, 1736, 2716, 2996, 3007, 3317, 5432, 5992, 6014, 6634, 10379, 12028, 13268, 20758, 21049, 23219, 24056, 26536, 41516, 42098, 46438, 72653, 83032, 84196, 92876, 145306, 168392, 185752, 290612, 321749, 581224, 643498, 1286996, 2252243, 2573992, 4504486, 9008972, 18017944]

約数ペア:

[(1, 18017944), (2, 9008972), (4, 4504486), (7, 2573992), (8, 2252243), (14, 1286996), (28, 643498), (31, 581224), (56, 321749), (62, 290612), (97, 185752), (107, 168392), (124, 145306), (194, 92876), (214, 84196), (217, 83032), (248, 72653), (388, 46438), (428, 42098), (434, 41516), (679, 26536), (749, 24056), (776, 23219), (856, 21049), (868, 20758), (1358, 13268), (1498, 12028), (1736, 10379), (2716, 6634), (2996, 6014), (3007, 5992), (3317, 5432)]