21868616

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 29833144

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 131, 154, 262, 271, 308, 524, 542, 616, 917, 1048, 1084, 1441, 1834, 1897, 2168, 2882, 2981, 3668, 3794, 5764, 5962, 7336, 7588, 10087, 11528, 11924, 15176, 20174, 20867, 23848, 35501, 40348, 41734, 71002, 80696, 83468, 142004, 166936, 248507, 284008, 390511, 497014, 781022, 994028, 1562044, 1988056, 2733577, 3124088, 5467154, 10934308, 21868616]

約数ペア:

[(1, 21868616), (2, 10934308), (4, 5467154), (7, 3124088), (8, 2733577), (11, 1988056), (14, 1562044), (22, 994028), (28, 781022), (44, 497014), (56, 390511), (77, 284008), (88, 248507), (131, 166936), (154, 142004), (262, 83468), (271, 80696), (308, 71002), (524, 41734), (542, 40348), (616, 35501), (917, 23848), (1048, 20867), (1084, 20174), (1441, 15176), (1834, 11924), (1897, 11528), (2168, 10087), (2882, 7588), (2981, 7336), (3668, 5962), (3794, 5764)]