21099912

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^2\times {\mathrm{523}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 54171120

約数和(自身を除く): 33071208

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 523, 984, 1046, 1569, 1681, 2092, 3138, 3362, 4184, 5043, 6276, 6724, 10086, 12552, 13448, 20172, 21443, 40344, 42886, 64329, 85772, 128658, 171544, 257316, 514632, 879163, 1758326, 2637489, 3516652, 5274978, 7033304, 10549956, 21099912]

約数ペア:

[(1, 21099912), (2, 10549956), (3, 7033304), (4, 5274978), (6, 3516652), (8, 2637489), (12, 1758326), (24, 879163), (41, 514632), (82, 257316), (123, 171544), (164, 128658), (246, 85772), (328, 64329), (492, 42886), (523, 40344), (984, 21443), (1046, 20172), (1569, 13448), (1681, 12552), (2092, 10086), (3138, 6724), (3362, 6276), (4184, 5043)]