21103617580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{547577}}^1$

素因数の和:547674

約数の個数: 48

約数和(自身を含む): 46364524416

約数和(自身を除く): 25260906836

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 3854, 7708, 9635, 19270, 38540, 547577, 1095154, 2190308, 2737885, 5475770, 10951540, 22450657, 25736119, 44901314, 51472238, 89802628, 102944476, 112253285, 128680595, 224506570, 257361190, 449013140, 514722380, 1055180879, 2110361758, 4220723516, 5275904395, 10551808790, 21103617580]

約数ペア:

[(1, 21103617580), (2, 10551808790), (4, 5275904395), (5, 4220723516), (10, 2110361758), (20, 1055180879), (41, 514722380), (47, 449013140), (82, 257361190), (94, 224506570), (164, 128680595), (188, 112253285), (205, 102944476), (235, 89802628), (410, 51472238), (470, 44901314), (820, 25736119), (940, 22450657), (1927, 10951540), (3854, 5475770), (7708, 2737885), (9635, 2190308), (19270, 1095154), (38540, 547577)]