19443717

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12005883

約数列:

[1, 3, 9, 23, 29, 41, 69, 79, 87, 123, 207, 237, 261, 369, 667, 711, 943, 1189, 1817, 2001, 2291, 2829, 3239, 3567, 5451, 6003, 6873, 8487, 9717, 10701, 16353, 20619, 27347, 29151, 52693, 74497, 82041, 93931, 158079, 223491, 246123, 281793, 474237, 670473, 845379, 2160413, 6481239, 19443717]

約数ペア:

[(1, 19443717), (3, 6481239), (9, 2160413), (23, 845379), (29, 670473), (41, 474237), (69, 281793), (79, 246123), (87, 223491), (123, 158079), (207, 93931), (237, 82041), (261, 74497), (369, 52693), (667, 29151), (711, 27347), (943, 20619), (1189, 16353), (1817, 10701), (2001, 9717), (2291, 8487), (2829, 6873), (3239, 6003), (3567, 5451)]