21158988

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2473}}^1$

素因数の和:2534

約数の個数: 48

約数和(自身を含む): 53200896

約数和(自身を除く): 32041908

約数列:

[1, 2, 3, 4, 6, 12, 23, 31, 46, 62, 69, 92, 93, 124, 138, 186, 276, 372, 713, 1426, 2139, 2473, 2852, 4278, 4946, 7419, 8556, 9892, 14838, 29676, 56879, 76663, 113758, 153326, 170637, 227516, 229989, 306652, 341274, 459978, 682548, 919956, 1763249, 3526498, 5289747, 7052996, 10579494, 21158988]

約数ペア:

[(1, 21158988), (2, 10579494), (3, 7052996), (4, 5289747), (6, 3526498), (12, 1763249), (23, 919956), (31, 682548), (46, 459978), (62, 341274), (69, 306652), (92, 229989), (93, 227516), (124, 170637), (138, 153326), (186, 113758), (276, 76663), (372, 56879), (713, 29676), (1426, 14838), (2139, 9892), (2473, 8556), (2852, 7419), (4278, 4946)]