21903376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1399

約数の個数: 40

約数和(自身を含む): 46809504

約数和(自身を除く): 24906128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 97, 176, 194, 388, 776, 1067, 1283, 1552, 2134, 2566, 4268, 5132, 8536, 10264, 14113, 17072, 20528, 28226, 56452, 112904, 124451, 225808, 248902, 497804, 995608, 1368961, 1991216, 2737922, 5475844, 10951688, 21903376]

約数ペア:

[(1, 21903376), (2, 10951688), (4, 5475844), (8, 2737922), (11, 1991216), (16, 1368961), (22, 995608), (44, 497804), (88, 248902), (97, 225808), (176, 124451), (194, 112904), (388, 56452), (776, 28226), (1067, 20528), (1283, 17072), (1552, 14113), (2134, 10264), (2566, 8536), (4268, 5132)]