13215455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 18690048

約数和(自身を除く): 5474593

約数列:

[1, 5, 11, 23, 31, 55, 115, 155, 253, 337, 341, 713, 1265, 1685, 1705, 3565, 3707, 7751, 7843, 10447, 18535, 38755, 39215, 52235, 85261, 114917, 240281, 426305, 574585, 1201405, 2643091, 13215455]

約数ペア:

[(1, 13215455), (5, 2643091), (11, 1201405), (23, 574585), (31, 426305), (55, 240281), (115, 114917), (155, 85261), (253, 52235), (337, 39215), (341, 38755), (713, 18535), (1265, 10447), (1685, 7843), (1705, 7751), (3565, 3707)]