16886961

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 32524800

約数和(自身を除く): 15637839

約数列:

[1, 3, 7, 9, 13, 21, 27, 29, 39, 63, 79, 81, 87, 91, 117, 189, 203, 237, 261, 273, 351, 377, 553, 567, 609, 711, 783, 819, 1027, 1053, 1131, 1659, 1827, 2133, 2291, 2349, 2457, 2639, 3081, 3393, 4977, 5481, 6399, 6873, 7189, 7371, 7917, 9243, 10179, 14931, 16037, 16443, 20619, 21567, 23751, 27729, 29783, 30537, 44793, 48111, 61857, 64701, 71253, 83187, 89349, 144333, 185571, 194103, 208481, 213759, 268047, 432999, 582309, 625443, 804141, 1298997, 1876329, 2412423, 5628987, 16886961]

約数ペア:

[(1, 16886961), (3, 5628987), (7, 2412423), (9, 1876329), (13, 1298997), (21, 804141), (27, 625443), (29, 582309), (39, 432999), (63, 268047), (79, 213759), (81, 208481), (87, 194103), (91, 185571), (117, 144333), (189, 89349), (203, 83187), (237, 71253), (261, 64701), (273, 61857), (351, 48111), (377, 44793), (553, 30537), (567, 29783), (609, 27729), (711, 23751), (783, 21567), (819, 20619), (1027, 16443), (1053, 16037), (1131, 14931), (1659, 10179), (1827, 9243), (2133, 7917), (2291, 7371), (2349, 7189), (2457, 6873), (2639, 6399), (3081, 5481), (3393, 4977)]