18925998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2039}}^1$

素因数の和:2081

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 30425682

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 51, 78, 91, 102, 119, 182, 221, 238, 273, 357, 442, 546, 663, 714, 1326, 1547, 2039, 3094, 4078, 4641, 6117, 9282, 12234, 14273, 26507, 28546, 34663, 42819, 53014, 69326, 79521, 85638, 103989, 159042, 185549, 207978, 242641, 371098, 450619, 485282, 556647, 727923, 901238, 1113294, 1351857, 1455846, 2703714, 3154333, 6308666, 9462999, 18925998]

約数ペア:

[(1, 18925998), (2, 9462999), (3, 6308666), (6, 3154333), (7, 2703714), (13, 1455846), (14, 1351857), (17, 1113294), (21, 901238), (26, 727923), (34, 556647), (39, 485282), (42, 450619), (51, 371098), (78, 242641), (91, 207978), (102, 185549), (119, 159042), (182, 103989), (221, 85638), (238, 79521), (273, 69326), (357, 53014), (442, 42819), (546, 34663), (663, 28546), (714, 26507), (1326, 14273), (1547, 12234), (2039, 9282), (3094, 6117), (4078, 4641)]