20178342

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 48038400

約数和(自身を除く): 27860058

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 71, 114, 142, 171, 213, 277, 342, 426, 513, 554, 639, 831, 1026, 1278, 1349, 1662, 1917, 2493, 2698, 3834, 4047, 4986, 5263, 7479, 8094, 10526, 12141, 14958, 15789, 19667, 24282, 31578, 36423, 39334, 47367, 59001, 72846, 94734, 118002, 142101, 177003, 284202, 354006, 373673, 531009, 747346, 1062018, 1121019, 2242038, 3363057, 6726114, 10089171, 20178342]

約数ペア:

[(1, 20178342), (2, 10089171), (3, 6726114), (6, 3363057), (9, 2242038), (18, 1121019), (19, 1062018), (27, 747346), (38, 531009), (54, 373673), (57, 354006), (71, 284202), (114, 177003), (142, 142101), (171, 118002), (213, 94734), (277, 72846), (342, 59001), (426, 47367), (513, 39334), (554, 36423), (639, 31578), (831, 24282), (1026, 19667), (1278, 15789), (1349, 14958), (1662, 12141), (1917, 10526), (2493, 8094), (2698, 7479), (3834, 5263), (4047, 4986)]