18042885

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 37378560

約数和(自身を除く): 19335675

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 105, 135, 183, 189, 305, 313, 315, 427, 549, 915, 939, 945, 1281, 1565, 1647, 2135, 2191, 2745, 2817, 3843, 4695, 6405, 6573, 8235, 8451, 10955, 11529, 14085, 19093, 19215, 19719, 32865, 42255, 57279, 57645, 59157, 95465, 98595, 133651, 171837, 286395, 295785, 400953, 515511, 668255, 859185, 1202859, 2004765, 2577555, 3608577, 6014295, 18042885]

約数ペア:

[(1, 18042885), (3, 6014295), (5, 3608577), (7, 2577555), (9, 2004765), (15, 1202859), (21, 859185), (27, 668255), (35, 515511), (45, 400953), (61, 295785), (63, 286395), (105, 171837), (135, 133651), (183, 98595), (189, 95465), (305, 59157), (313, 57645), (315, 57279), (427, 42255), (549, 32865), (915, 19719), (939, 19215), (945, 19093), (1281, 14085), (1565, 11529), (1647, 10955), (2135, 8451), (2191, 8235), (2745, 6573), (2817, 6405), (3843, 4695)]