21494568

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 56376000

約数和(自身を除く): 34881432

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 89, 116, 174, 178, 232, 267, 347, 348, 356, 534, 694, 696, 712, 1041, 1068, 1388, 2082, 2136, 2581, 2776, 4164, 5162, 7743, 8328, 10063, 10324, 15486, 20126, 20648, 30189, 30883, 30972, 40252, 60378, 61766, 61944, 80504, 92649, 120756, 123532, 185298, 241512, 247064, 370596, 741192, 895607, 1791214, 2686821, 3582428, 5373642, 7164856, 10747284, 21494568]

約数ペア:

[(1, 21494568), (2, 10747284), (3, 7164856), (4, 5373642), (6, 3582428), (8, 2686821), (12, 1791214), (24, 895607), (29, 741192), (58, 370596), (87, 247064), (89, 241512), (116, 185298), (174, 123532), (178, 120756), (232, 92649), (267, 80504), (347, 61944), (348, 61766), (356, 60378), (534, 40252), (694, 30972), (696, 30883), (712, 30189), (1041, 20648), (1068, 20126), (1388, 15486), (2082, 10324), (2136, 10063), (2581, 8328), (2776, 7743), (4164, 5162)]