21979504

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4253}}^1$

素因数の和:4297

約数の個数: 40

約数和(自身を含む): 47474640

約数和(自身を除く): 25495136

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 4253, 5168, 8506, 17012, 34024, 68048, 72301, 80807, 144602, 161614, 289204, 323228, 578408, 646456, 1156816, 1292912, 1373719, 2747438, 5494876, 10989752, 21979504]

約数ペア:

[(1, 21979504), (2, 10989752), (4, 5494876), (8, 2747438), (16, 1373719), (17, 1292912), (19, 1156816), (34, 646456), (38, 578408), (68, 323228), (76, 289204), (136, 161614), (152, 144602), (272, 80807), (304, 72301), (323, 68048), (646, 34024), (1292, 17012), (2584, 8506), (4253, 5168)]