21805274

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 14655526

約数列:

[1, 2, 19, 29, 38, 47, 58, 94, 421, 551, 842, 893, 1102, 1363, 1786, 2726, 7999, 12209, 15998, 19787, 24418, 25897, 39574, 51794, 231971, 375953, 463942, 573823, 751906, 1147646, 10902637, 21805274]

約数ペア:

[(1, 21805274), (2, 10902637), (19, 1147646), (29, 751906), (38, 573823), (47, 463942), (58, 375953), (94, 231971), (421, 51794), (551, 39574), (842, 25897), (893, 24418), (1102, 19787), (1363, 15998), (1786, 12209), (2726, 7999)]