21193304

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 46621440

約数和(自身を除く): 25428136

約数列:

[1, 2, 4, 8, 11, 22, 23, 37, 44, 46, 74, 88, 92, 148, 184, 253, 283, 296, 407, 506, 566, 814, 851, 1012, 1132, 1628, 1702, 2024, 2264, 3113, 3256, 3404, 6226, 6509, 6808, 9361, 10471, 12452, 13018, 18722, 20942, 24904, 26036, 37444, 41884, 52072, 71599, 74888, 83768, 115181, 143198, 230362, 240833, 286396, 460724, 481666, 572792, 921448, 963332, 1926664, 2649163, 5298326, 10596652, 21193304]

約数ペア:

[(1, 21193304), (2, 10596652), (4, 5298326), (8, 2649163), (11, 1926664), (22, 963332), (23, 921448), (37, 572792), (44, 481666), (46, 460724), (74, 286396), (88, 240833), (92, 230362), (148, 143198), (184, 115181), (253, 83768), (283, 74888), (296, 71599), (407, 52072), (506, 41884), (566, 37444), (814, 26036), (851, 24904), (1012, 20942), (1132, 18722), (1628, 13018), (1702, 12452), (2024, 10471), (2264, 9361), (3113, 6808), (3256, 6509), (3404, 6226)]