18123615

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 34992000

約数和(自身を除く): 16868385

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 85, 135, 149, 153, 159, 255, 265, 447, 459, 477, 745, 765, 795, 901, 1341, 1431, 2235, 2295, 2385, 2533, 2703, 4023, 4505, 6705, 7155, 7599, 7897, 8109, 12665, 13515, 20115, 22797, 23691, 24327, 37995, 39485, 40545, 68391, 71073, 113985, 118455, 121635, 134249, 213219, 341955, 355365, 402747, 671245, 1066095, 1208241, 2013735, 3624723, 6041205, 18123615]

約数ペア:

[(1, 18123615), (3, 6041205), (5, 3624723), (9, 2013735), (15, 1208241), (17, 1066095), (27, 671245), (45, 402747), (51, 355365), (53, 341955), (85, 213219), (135, 134249), (149, 121635), (153, 118455), (159, 113985), (255, 71073), (265, 68391), (447, 40545), (459, 39485), (477, 37995), (745, 24327), (765, 23691), (795, 22797), (901, 20115), (1341, 13515), (1431, 12665), (2235, 8109), (2295, 7897), (2385, 7599), (2533, 7155), (2703, 6705), (4023, 4505)]