18217017

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 34257600

約数和(自身を除く): 16040583

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 59, 63, 87, 91, 117, 169, 177, 203, 261, 273, 377, 413, 507, 531, 609, 767, 819, 1131, 1183, 1239, 1521, 1711, 1827, 2301, 2639, 3393, 3549, 3717, 4901, 5133, 5369, 6903, 7917, 9971, 10647, 11977, 14703, 15399, 16107, 22243, 23751, 29913, 34307, 35931, 44109, 48321, 66729, 69797, 89739, 102921, 107793, 155701, 200187, 209391, 289159, 308763, 467103, 628173, 867477, 1401309, 2024113, 2602431, 6072339, 18217017]

約数ペア:

[(1, 18217017), (3, 6072339), (7, 2602431), (9, 2024113), (13, 1401309), (21, 867477), (29, 628173), (39, 467103), (59, 308763), (63, 289159), (87, 209391), (91, 200187), (117, 155701), (169, 107793), (177, 102921), (203, 89739), (261, 69797), (273, 66729), (377, 48321), (413, 44109), (507, 35931), (531, 34307), (609, 29913), (767, 23751), (819, 22243), (1131, 16107), (1183, 15399), (1239, 14703), (1521, 11977), (1711, 10647), (1827, 9971), (2301, 7917), (2639, 6903), (3393, 5369), (3549, 5133), (3717, 4901)]