20559516

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 50475264

約数和(自身を除く): 29915748

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 163, 276, 326, 457, 489, 652, 914, 978, 1371, 1828, 1956, 2742, 3749, 5484, 7498, 10511, 11247, 14996, 21022, 22494, 31533, 42044, 44988, 63066, 74491, 126132, 148982, 223473, 297964, 446946, 893892, 1713293, 3426586, 5139879, 6853172, 10279758, 20559516]

約数ペア:

[(1, 20559516), (2, 10279758), (3, 6853172), (4, 5139879), (6, 3426586), (12, 1713293), (23, 893892), (46, 446946), (69, 297964), (92, 223473), (138, 148982), (163, 126132), (276, 74491), (326, 63066), (457, 44988), (489, 42044), (652, 31533), (914, 22494), (978, 21022), (1371, 14996), (1828, 11247), (1956, 10511), (2742, 7498), (3749, 5484)]