28288359

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 20458521

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 243, 297, 513, 557, 627, 891, 1539, 1671, 1881, 2673, 4617, 5013, 5643, 6127, 10583, 15039, 16929, 18381, 31749, 45117, 50787, 55143, 95247, 116413, 135351, 165429, 285741, 349239, 496287, 857223, 1047717, 1488861, 2571669, 3143151, 9429453, 28288359]

約数ペア:

[(1, 28288359), (3, 9429453), (9, 3143151), (11, 2571669), (19, 1488861), (27, 1047717), (33, 857223), (57, 496287), (81, 349239), (99, 285741), (171, 165429), (209, 135351), (243, 116413), (297, 95247), (513, 55143), (557, 50787), (627, 45117), (891, 31749), (1539, 18381), (1671, 16929), (1881, 15039), (2673, 10583), (4617, 6127), (5013, 5643)]