55720749

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{389}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 89856000

約数和(自身を除く): 34135251

約数列:

[1, 3, 7, 19, 21, 57, 133, 359, 389, 399, 1077, 1167, 2513, 2723, 6821, 7391, 7539, 8169, 20463, 22173, 47747, 51737, 139651, 143241, 155211, 418953, 977557, 2653369, 2932671, 7960107, 18573583, 55720749]

約数ペア:

[(1, 55720749), (3, 18573583), (7, 7960107), (19, 2932671), (21, 2653369), (57, 977557), (133, 418953), (359, 155211), (389, 143241), (399, 139651), (1077, 51737), (1167, 47747), (2513, 22173), (2723, 20463), (6821, 8169), (7391, 7539)]