21266904

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{653}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 35238696

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 59, 69, 92, 118, 138, 177, 184, 236, 276, 354, 472, 552, 653, 708, 1306, 1357, 1416, 1959, 2612, 2714, 3918, 4071, 5224, 5428, 7836, 8142, 10856, 15019, 15672, 16284, 30038, 32568, 38527, 45057, 60076, 77054, 90114, 115581, 120152, 154108, 180228, 231162, 308216, 360456, 462324, 886121, 924648, 1772242, 2658363, 3544484, 5316726, 7088968, 10633452, 21266904]

約数ペア:

[(1, 21266904), (2, 10633452), (3, 7088968), (4, 5316726), (6, 3544484), (8, 2658363), (12, 1772242), (23, 924648), (24, 886121), (46, 462324), (59, 360456), (69, 308216), (92, 231162), (118, 180228), (138, 154108), (177, 120152), (184, 115581), (236, 90114), (276, 77054), (354, 60076), (472, 45057), (552, 38527), (653, 32568), (708, 30038), (1306, 16284), (1357, 15672), (1416, 15019), (1959, 10856), (2612, 8142), (2714, 7836), (3918, 5428), (4071, 5224)]