21325232

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{347}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 43497216

約数和(自身を除く): 22171984

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 167, 184, 334, 347, 368, 668, 694, 1336, 1388, 2672, 2776, 3841, 5552, 7682, 7981, 15364, 15962, 30728, 31924, 57949, 61456, 63848, 115898, 127696, 231796, 463592, 927184, 1332827, 2665654, 5331308, 10662616, 21325232]

約数ペア:

[(1, 21325232), (2, 10662616), (4, 5331308), (8, 2665654), (16, 1332827), (23, 927184), (46, 463592), (92, 231796), (167, 127696), (184, 115898), (334, 63848), (347, 61456), (368, 57949), (668, 31924), (694, 30728), (1336, 15962), (1388, 15364), (2672, 7981), (2776, 7682), (3841, 5552)]