19156995

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{229}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 39396240

約数和(自身を除く): 20239245

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 143, 165, 169, 195, 229, 429, 495, 507, 585, 687, 715, 845, 1145, 1287, 1521, 1859, 2061, 2145, 2519, 2535, 2977, 3435, 5577, 6435, 7557, 7605, 8931, 9295, 10305, 12595, 14885, 16731, 22671, 26793, 27885, 32747, 37785, 38701, 44655, 83655, 98241, 113355, 116103, 133965, 163735, 193505, 294723, 348309, 425711, 491205, 580515, 1277133, 1473615, 1741545, 2128555, 3831399, 6385665, 19156995]

約数ペア:

[(1, 19156995), (3, 6385665), (5, 3831399), (9, 2128555), (11, 1741545), (13, 1473615), (15, 1277133), (33, 580515), (39, 491205), (45, 425711), (55, 348309), (65, 294723), (99, 193505), (117, 163735), (143, 133965), (165, 116103), (169, 113355), (195, 98241), (229, 83655), (429, 44655), (495, 38701), (507, 37785), (585, 32747), (687, 27885), (715, 26793), (845, 22671), (1145, 16731), (1287, 14885), (1521, 12595), (1859, 10305), (2061, 9295), (2145, 8931), (2519, 7605), (2535, 7557), (2977, 6435), (3435, 5577)]