21722428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 25693892

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 83, 91, 166, 182, 332, 364, 581, 719, 1079, 1162, 1438, 2158, 2324, 2876, 4316, 5033, 7553, 9347, 10066, 15106, 18694, 20132, 30212, 37388, 59677, 65429, 119354, 130858, 238708, 261716, 417739, 775801, 835478, 1551602, 1670956, 3103204, 5430607, 10861214, 21722428]

約数ペア:

[(1, 21722428), (2, 10861214), (4, 5430607), (7, 3103204), (13, 1670956), (14, 1551602), (26, 835478), (28, 775801), (52, 417739), (83, 261716), (91, 238708), (166, 130858), (182, 119354), (332, 65429), (364, 59677), (581, 37388), (719, 30212), (1079, 20132), (1162, 18694), (1438, 15106), (2158, 10066), (2324, 9347), (2876, 7553), (4316, 5033)]