21370128

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1489}}^1$

素因数の和:1536

約数の個数: 80

約数和(自身を含む): 62079360

約数和(自身を除く): 40709232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1489, 1794, 2392, 2978, 3588, 4467, 4784, 5956, 7176, 8934, 11912, 14352, 17868, 19357, 23824, 34247, 35736, 38714, 58071, 68494, 71472, 77428, 102741, 116142, 136988, 154856, 205482, 232284, 273976, 309712, 410964, 445211, 464568, 547952, 821928, 890422, 929136, 1335633, 1643856, 1780844, 2671266, 3561688, 5342532, 7123376, 10685064, 21370128]

約数ペア:

[(1, 21370128), (2, 10685064), (3, 7123376), (4, 5342532), (6, 3561688), (8, 2671266), (12, 1780844), (13, 1643856), (16, 1335633), (23, 929136), (24, 890422), (26, 821928), (39, 547952), (46, 464568), (48, 445211), (52, 410964), (69, 309712), (78, 273976), (92, 232284), (104, 205482), (138, 154856), (156, 136988), (184, 116142), (208, 102741), (276, 77428), (299, 71472), (312, 68494), (368, 58071), (552, 38714), (598, 35736), (624, 34247), (897, 23824), (1104, 19357), (1196, 17868), (1489, 14352), (1794, 11912), (2392, 8934), (2978, 7176), (3588, 5956), (4467, 4784)]