642261347

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 835007040

約数和(自身を除く): 192745693

約数列:

[1, 7, 13, 29, 91, 97, 169, 193, 203, 377, 679, 1183, 1261, 1351, 2509, 2639, 2813, 4901, 5597, 8827, 16393, 17563, 18721, 19691, 32617, 34307, 36569, 39179, 72761, 114751, 131047, 228319, 243373, 255983, 475397, 509327, 542909, 945893, 1703611, 3163849, 3327779, 3800363, 6621251, 7057817, 22146943, 49404719, 91751621, 642261347]

約数ペア:

[(1, 642261347), (7, 91751621), (13, 49404719), (29, 22146943), (91, 7057817), (97, 6621251), (169, 3800363), (193, 3327779), (203, 3163849), (377, 1703611), (679, 945893), (1183, 542909), (1261, 509327), (1351, 475397), (2509, 255983), (2639, 243373), (2813, 228319), (4901, 131047), (5597, 114751), (8827, 72761), (16393, 39179), (17563, 36569), (18721, 34307), (19691, 32617)]