18715606

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 38320128

約数和(自身を除く): 19604522

約数列:

[1, 2, 7, 13, 14, 17, 23, 26, 34, 46, 91, 119, 161, 182, 221, 238, 263, 299, 322, 391, 442, 526, 598, 782, 1547, 1841, 2093, 2737, 3094, 3419, 3682, 4186, 4471, 5083, 5474, 6049, 6838, 8942, 10166, 12098, 23933, 31297, 35581, 42343, 47866, 58123, 62594, 71162, 78637, 84686, 102833, 116246, 157274, 205666, 406861, 550459, 719831, 813722, 1100918, 1336829, 1439662, 2673658, 9357803, 18715606]

約数ペア:

[(1, 18715606), (2, 9357803), (7, 2673658), (13, 1439662), (14, 1336829), (17, 1100918), (23, 813722), (26, 719831), (34, 550459), (46, 406861), (91, 205666), (119, 157274), (161, 116246), (182, 102833), (221, 84686), (238, 78637), (263, 71162), (299, 62594), (322, 58123), (391, 47866), (442, 42343), (526, 35581), (598, 31297), (782, 23933), (1547, 12098), (1841, 10166), (2093, 8942), (2737, 6838), (3094, 6049), (3419, 5474), (3682, 5083), (4186, 4471)]