21568192516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{138581}}^1$

素因数の和:138712

約数の個数: 48

約数和(自身を含む): 42209859888

約数和(自身を除く): 20641667372

約数列:

[1, 2, 4, 13, 26, 41, 52, 73, 82, 146, 164, 292, 533, 949, 1066, 1898, 2132, 2993, 3796, 5986, 11972, 38909, 77818, 138581, 155636, 277162, 554324, 1801553, 3603106, 5681821, 7206212, 10116413, 11363642, 20232826, 22727284, 40465652, 73863673, 131513369, 147727346, 263026738, 295454692, 414772933, 526053476, 829545866, 1659091732, 5392048129, 10784096258, 21568192516]

約数ペア:

[(1, 21568192516), (2, 10784096258), (4, 5392048129), (13, 1659091732), (26, 829545866), (41, 526053476), (52, 414772933), (73, 295454692), (82, 263026738), (146, 147727346), (164, 131513369), (292, 73863673), (533, 40465652), (949, 22727284), (1066, 20232826), (1898, 11363642), (2132, 10116413), (2993, 7206212), (3796, 5681821), (5986, 3603106), (11972, 1801553), (38909, 554324), (77818, 277162), (138581, 155636)]