18617391

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 13638609

約数列:

[1, 3, 9, 13, 27, 29, 31, 39, 59, 87, 93, 117, 177, 261, 279, 351, 377, 403, 531, 767, 783, 837, 899, 1131, 1209, 1593, 1711, 1829, 2301, 2697, 3393, 3627, 5133, 5487, 6903, 8091, 10179, 10881, 11687, 15399, 16461, 20709, 22243, 23777, 24273, 35061, 46197, 49383, 53041, 66729, 71331, 105183, 159123, 200187, 213993, 315549, 477369, 600561, 641979, 689533, 1432107, 2068599, 6205797, 18617391]

約数ペア:

[(1, 18617391), (3, 6205797), (9, 2068599), (13, 1432107), (27, 689533), (29, 641979), (31, 600561), (39, 477369), (59, 315549), (87, 213993), (93, 200187), (117, 159123), (177, 105183), (261, 71331), (279, 66729), (351, 53041), (377, 49383), (403, 46197), (531, 35061), (767, 24273), (783, 23777), (837, 22243), (899, 20709), (1131, 16461), (1209, 15399), (1593, 11687), (1711, 10881), (1829, 10179), (2301, 8091), (2697, 6903), (3393, 5487), (3627, 5133)]