21000852456

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{979883}}^1$

素因数の和:979958

約数の個数: 64

約数和(自身を含む): 56441318400

約数和(自身を除く): 35440465944

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 47, 57, 76, 94, 114, 141, 152, 188, 228, 282, 376, 456, 564, 893, 1128, 1786, 2679, 3572, 5358, 7144, 10716, 21432, 979883, 1959766, 2939649, 3919532, 5879298, 7839064, 11758596, 18617777, 23517192, 37235554, 46054501, 55853331, 74471108, 92109002, 111706662, 138163503, 148942216, 184218004, 223413324, 276327006, 368436008, 446826648, 552654012, 875035519, 1105308024, 1750071038, 2625106557, 3500142076, 5250213114, 7000284152, 10500426228, 21000852456]

約数ペア:

[(1, 21000852456), (2, 10500426228), (3, 7000284152), (4, 5250213114), (6, 3500142076), (8, 2625106557), (12, 1750071038), (19, 1105308024), (24, 875035519), (38, 552654012), (47, 446826648), (57, 368436008), (76, 276327006), (94, 223413324), (114, 184218004), (141, 148942216), (152, 138163503), (188, 111706662), (228, 92109002), (282, 74471108), (376, 55853331), (456, 46054501), (564, 37235554), (893, 23517192), (1128, 18617777), (1786, 11758596), (2679, 7839064), (3572, 5879298), (5358, 3919532), (7144, 2939649), (10716, 1959766), (21432, 979883)]