20563928

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 31146472

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 49, 56, 76, 77, 88, 98, 133, 152, 154, 196, 209, 251, 266, 308, 392, 418, 502, 532, 539, 616, 836, 931, 1004, 1064, 1078, 1463, 1672, 1757, 1862, 2008, 2156, 2761, 2926, 3514, 3724, 4312, 4769, 5522, 5852, 7028, 7448, 9538, 10241, 11044, 11704, 12299, 14056, 19076, 19327, 20482, 22088, 24598, 33383, 38152, 38654, 40964, 49196, 52459, 66766, 77308, 81928, 98392, 104918, 133532, 135289, 154616, 209836, 233681, 267064, 270578, 367213, 419672, 467362, 541156, 734426, 934724, 1082312, 1468852, 1869448, 2570491, 2937704, 5140982, 10281964, 20563928]

約数ペア:

[(1, 20563928), (2, 10281964), (4, 5140982), (7, 2937704), (8, 2570491), (11, 1869448), (14, 1468852), (19, 1082312), (22, 934724), (28, 734426), (38, 541156), (44, 467362), (49, 419672), (56, 367213), (76, 270578), (77, 267064), (88, 233681), (98, 209836), (133, 154616), (152, 135289), (154, 133532), (196, 104918), (209, 98392), (251, 81928), (266, 77308), (308, 66766), (392, 52459), (418, 49196), (502, 40964), (532, 38654), (539, 38152), (616, 33383), (836, 24598), (931, 22088), (1004, 20482), (1064, 19327), (1078, 19076), (1463, 14056), (1672, 12299), (1757, 11704), (1862, 11044), (2008, 10241), (2156, 9538), (2761, 7448), (2926, 7028), (3514, 5852), (3724, 5522), (4312, 4769)]