20281254

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 49262592

約数和(自身を除く): 28981338

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 37, 42, 62, 74, 93, 111, 186, 217, 222, 259, 421, 434, 518, 651, 777, 842, 1147, 1263, 1302, 1554, 2294, 2526, 2947, 3441, 5894, 6882, 8029, 8841, 13051, 15577, 16058, 17682, 24087, 26102, 31154, 39153, 46731, 48174, 78306, 91357, 93462, 109039, 182714, 218078, 274071, 327117, 482887, 548142, 654234, 965774, 1448661, 2897322, 3380209, 6760418, 10140627, 20281254]

約数ペア:

[(1, 20281254), (2, 10140627), (3, 6760418), (6, 3380209), (7, 2897322), (14, 1448661), (21, 965774), (31, 654234), (37, 548142), (42, 482887), (62, 327117), (74, 274071), (93, 218078), (111, 182714), (186, 109039), (217, 93462), (222, 91357), (259, 78306), (421, 48174), (434, 46731), (518, 39153), (651, 31154), (777, 26102), (842, 24087), (1147, 17682), (1263, 16058), (1302, 15577), (1554, 13051), (2294, 8841), (2526, 8029), (2947, 6882), (3441, 5894)]