21371086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 18545714

約数列:

[1, 2, 11, 19, 22, 29, 38, 41, 43, 58, 82, 86, 209, 319, 418, 451, 473, 551, 638, 779, 817, 902, 946, 1102, 1189, 1247, 1558, 1634, 1763, 2378, 2494, 3526, 6061, 8569, 8987, 12122, 13079, 13717, 17138, 17974, 19393, 22591, 23693, 26158, 27434, 33497, 38786, 45182, 47386, 51127, 66994, 102254, 248501, 260623, 368467, 497002, 521246, 562397, 736934, 971413, 1124794, 1942826, 10685543, 21371086]

約数ペア:

[(1, 21371086), (2, 10685543), (11, 1942826), (19, 1124794), (22, 971413), (29, 736934), (38, 562397), (41, 521246), (43, 497002), (58, 368467), (82, 260623), (86, 248501), (209, 102254), (319, 66994), (418, 51127), (451, 47386), (473, 45182), (551, 38786), (638, 33497), (779, 27434), (817, 26158), (902, 23693), (946, 22591), (1102, 19393), (1189, 17974), (1247, 17138), (1558, 13717), (1634, 13079), (1763, 12122), (2378, 8987), (2494, 8569), (3526, 6061)]