21182798

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 36

約数和(自身を含む): 40055040

約数和(自身を除く): 18872242

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 169, 182, 338, 637, 1183, 1274, 1279, 2366, 2558, 8281, 8953, 16562, 16627, 17906, 33254, 62671, 116389, 125342, 216151, 232778, 432302, 814723, 1513057, 1629446, 3026114, 10591399, 21182798]

約数ペア:

[(1, 21182798), (2, 10591399), (7, 3026114), (13, 1629446), (14, 1513057), (26, 814723), (49, 432302), (91, 232778), (98, 216151), (169, 125342), (182, 116389), (338, 62671), (637, 33254), (1183, 17906), (1274, 16627), (1279, 16562), (2366, 8953), (2558, 8281)]