21028326

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 28565274

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 41, 57, 66, 82, 114, 123, 209, 246, 409, 418, 451, 627, 779, 818, 902, 1227, 1254, 1353, 1558, 2337, 2454, 2706, 4499, 4674, 7771, 8569, 8998, 13497, 15542, 16769, 17138, 23313, 25707, 26994, 33538, 46626, 50307, 51414, 85481, 100614, 170962, 184459, 256443, 318611, 368918, 512886, 553377, 637222, 955833, 1106754, 1911666, 3504721, 7009442, 10514163, 21028326]

約数ペア:

[(1, 21028326), (2, 10514163), (3, 7009442), (6, 3504721), (11, 1911666), (19, 1106754), (22, 955833), (33, 637222), (38, 553377), (41, 512886), (57, 368918), (66, 318611), (82, 256443), (114, 184459), (123, 170962), (209, 100614), (246, 85481), (409, 51414), (418, 50307), (451, 46626), (627, 33538), (779, 26994), (818, 25707), (902, 23313), (1227, 17138), (1254, 16769), (1353, 15542), (1558, 13497), (2337, 8998), (2454, 8569), (2706, 7771), (4499, 4674)]