21841328

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1361}}^1$

素因数の和:1445

約数の個数: 40

約数和(自身を含む): 45599760

約数和(自身を除く): 23758432

約数列:

[1, 2, 4, 8, 16, 17, 34, 59, 68, 118, 136, 236, 272, 472, 944, 1003, 1361, 2006, 2722, 4012, 5444, 8024, 10888, 16048, 21776, 23137, 46274, 80299, 92548, 160598, 185096, 321196, 370192, 642392, 1284784, 1365083, 2730166, 5460332, 10920664, 21841328]

約数ペア:

[(1, 21841328), (2, 10920664), (4, 5460332), (8, 2730166), (16, 1365083), (17, 1284784), (34, 642392), (59, 370192), (68, 321196), (118, 185096), (136, 160598), (236, 92548), (272, 80299), (472, 46274), (944, 23137), (1003, 21776), (1361, 16048), (2006, 10888), (2722, 8024), (4012, 5444)]