221610978

素因数分解:

$2^1\times 3^4\times {\mathrm{149}}^1\times {\mathrm{9181}}^1$

素因数の和:9344

約数の個数: 40

約数和(自身を含む): 499959900

約数和(自身を除く): 278348922

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 149, 162, 298, 447, 894, 1341, 2682, 4023, 8046, 9181, 12069, 18362, 24138, 27543, 55086, 82629, 165258, 247887, 495774, 743661, 1367969, 1487322, 2735938, 4103907, 8207814, 12311721, 24623442, 36935163, 73870326, 110805489, 221610978]

約数ペア:

[(1, 221610978), (2, 110805489), (3, 73870326), (6, 36935163), (9, 24623442), (18, 12311721), (27, 8207814), (54, 4103907), (81, 2735938), (149, 1487322), (162, 1367969), (298, 743661), (447, 495774), (894, 247887), (1341, 165258), (2682, 82629), (4023, 55086), (8046, 27543), (9181, 24138), (12069, 18362)]