221857984

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4243}}^1$

素因数の和:4317

約数の個数: 56

約数和(自身を含む): 474309440

約数和(自身を除く): 252451456

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 152, 172, 304, 344, 608, 688, 817, 1216, 1376, 1634, 2752, 3268, 4243, 6536, 8486, 13072, 16972, 26144, 33944, 52288, 67888, 80617, 135776, 161234, 182449, 271552, 322468, 364898, 644936, 729796, 1289872, 1459592, 2579744, 2919184, 3466531, 5159488, 5838368, 6933062, 11676736, 13866124, 27732248, 55464496, 110928992, 221857984]

約数ペア:

[(1, 221857984), (2, 110928992), (4, 55464496), (8, 27732248), (16, 13866124), (19, 11676736), (32, 6933062), (38, 5838368), (43, 5159488), (64, 3466531), (76, 2919184), (86, 2579744), (152, 1459592), (172, 1289872), (304, 729796), (344, 644936), (608, 364898), (688, 322468), (817, 271552), (1216, 182449), (1376, 161234), (1634, 135776), (2752, 80617), (3268, 67888), (4243, 52288), (6536, 33944), (8486, 26144), (13072, 16972)]