21591632

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{487}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 44657856

約数和(自身を除く): 23066224

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 163, 272, 326, 487, 652, 974, 1304, 1948, 2608, 2771, 3896, 5542, 7792, 8279, 11084, 16558, 22168, 33116, 44336, 66232, 79381, 132464, 158762, 317524, 635048, 1270096, 1349477, 2698954, 5397908, 10795816, 21591632]

約数ペア:

[(1, 21591632), (2, 10795816), (4, 5397908), (8, 2698954), (16, 1349477), (17, 1270096), (34, 635048), (68, 317524), (136, 158762), (163, 132464), (272, 79381), (326, 66232), (487, 44336), (652, 33116), (974, 22168), (1304, 16558), (1948, 11084), (2608, 8279), (2771, 7792), (3896, 5542)]