18729172

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 44755200

約数和(自身を除く): 26026028

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 73, 77, 98, 119, 146, 154, 187, 196, 238, 292, 308, 343, 374, 476, 511, 539, 686, 748, 803, 833, 1022, 1078, 1241, 1309, 1372, 1606, 1666, 2044, 2156, 2482, 2618, 3212, 3332, 3577, 3773, 4964, 5236, 5621, 5831, 7154, 7546, 8687, 9163, 11242, 11662, 13651, 14308, 15092, 17374, 18326, 22484, 23324, 25039, 27302, 34748, 36652, 39347, 50078, 54604, 60809, 64141, 78694, 95557, 100156, 121618, 128282, 157388, 191114, 243236, 256564, 275429, 382228, 425663, 550858, 668899, 851326, 1101716, 1337798, 1702652, 2675596, 4682293, 9364586, 18729172]

約数ペア:

[(1, 18729172), (2, 9364586), (4, 4682293), (7, 2675596), (11, 1702652), (14, 1337798), (17, 1101716), (22, 851326), (28, 668899), (34, 550858), (44, 425663), (49, 382228), (68, 275429), (73, 256564), (77, 243236), (98, 191114), (119, 157388), (146, 128282), (154, 121618), (187, 100156), (196, 95557), (238, 78694), (292, 64141), (308, 60809), (343, 54604), (374, 50078), (476, 39347), (511, 36652), (539, 34748), (686, 27302), (748, 25039), (803, 23324), (833, 22484), (1022, 18326), (1078, 17374), (1241, 15092), (1309, 14308), (1372, 13651), (1606, 11662), (1666, 11242), (2044, 9163), (2156, 8687), (2482, 7546), (2618, 7154), (3212, 5831), (3332, 5621), (3577, 5236), (3773, 4964)]