13579209

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 24560640

約数和(自身を除く): 10981431

約数列:

[1, 3, 7, 9, 17, 21, 31, 51, 63, 93, 119, 153, 217, 279, 357, 409, 527, 651, 1071, 1227, 1581, 1953, 2863, 3681, 3689, 4743, 6953, 8589, 11067, 12679, 20859, 25767, 33201, 38037, 48671, 62577, 88753, 114111, 146013, 215543, 266259, 438039, 646629, 798777, 1508801, 1939887, 4526403, 13579209]

約数ペア:

[(1, 13579209), (3, 4526403), (7, 1939887), (9, 1508801), (17, 798777), (21, 646629), (31, 438039), (51, 266259), (63, 215543), (93, 146013), (119, 114111), (153, 88753), (217, 62577), (279, 48671), (357, 38037), (409, 33201), (527, 25767), (651, 20859), (1071, 12679), (1227, 11067), (1581, 8589), (1953, 6953), (2863, 4743), (3681, 3689)]