21509226

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{4283}}^1$

素因数の和:4328

約数の個数: 40

約数和(自身を含む): 49762944

約数和(自身を除く): 28253718

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 279, 558, 837, 1674, 2511, 4283, 5022, 8566, 12849, 25698, 38547, 77094, 115641, 132773, 231282, 265546, 346923, 398319, 693846, 796638, 1194957, 2389914, 3584871, 7169742, 10754613, 21509226]

約数ペア:

[(1, 21509226), (2, 10754613), (3, 7169742), (6, 3584871), (9, 2389914), (18, 1194957), (27, 796638), (31, 693846), (54, 398319), (62, 346923), (81, 265546), (93, 231282), (162, 132773), (186, 115641), (279, 77094), (558, 38547), (837, 25698), (1674, 12849), (2511, 8566), (4283, 5022)]