19984095

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37132992

約数和(自身を除く): 17148897

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 151, 153, 173, 255, 453, 519, 755, 765, 865, 1359, 1557, 2265, 2567, 2595, 2941, 6795, 7701, 7785, 8823, 12835, 14705, 23103, 26123, 26469, 38505, 44115, 78369, 115515, 130615, 132345, 235107, 391845, 444091, 1175535, 1332273, 2220455, 3996819, 6661365, 19984095]

約数ペア:

[(1, 19984095), (3, 6661365), (5, 3996819), (9, 2220455), (15, 1332273), (17, 1175535), (45, 444091), (51, 391845), (85, 235107), (151, 132345), (153, 130615), (173, 115515), (255, 78369), (453, 44115), (519, 38505), (755, 26469), (765, 26123), (865, 23103), (1359, 14705), (1557, 12835), (2265, 8823), (2567, 7785), (2595, 7701), (2941, 6795)]