20055357

素因数分解:

$3^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 60

約数和(自身を含む): 36195456

約数和(自身を除く): 16140099

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 81, 93, 147, 163, 189, 217, 279, 441, 489, 567, 651, 837, 1141, 1323, 1467, 1519, 1953, 2511, 3423, 3969, 4401, 4557, 5053, 5859, 7987, 10269, 13203, 13671, 15159, 17577, 23961, 30807, 35371, 41013, 45477, 71883, 92421, 106113, 123039, 136431, 215649, 247597, 318339, 409293, 646947, 742791, 955017, 2228373, 2865051, 6685119, 20055357]

約数ペア:

[(1, 20055357), (3, 6685119), (7, 2865051), (9, 2228373), (21, 955017), (27, 742791), (31, 646947), (49, 409293), (63, 318339), (81, 247597), (93, 215649), (147, 136431), (163, 123039), (189, 106113), (217, 92421), (279, 71883), (441, 45477), (489, 41013), (567, 35371), (651, 30807), (837, 23961), (1141, 17577), (1323, 15159), (1467, 13671), (1519, 13203), (1953, 10269), (2511, 7987), (3423, 5859), (3969, 5053), (4401, 4557)]