19712628

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 54491528

約数和(自身を除く): 34778900

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 73, 78, 117, 146, 156, 219, 234, 292, 438, 468, 577, 657, 876, 949, 1154, 1314, 1731, 1898, 2308, 2628, 2847, 3462, 3796, 5193, 5694, 6924, 7501, 8541, 10386, 11388, 15002, 17082, 20772, 22503, 30004, 34164, 42121, 45006, 67509, 84242, 90012, 126363, 135018, 168484, 252726, 270036, 379089, 505452, 547573, 758178, 1095146, 1516356, 1642719, 2190292, 3285438, 4928157, 6570876, 9856314, 19712628]

約数ペア:

[(1, 19712628), (2, 9856314), (3, 6570876), (4, 4928157), (6, 3285438), (9, 2190292), (12, 1642719), (13, 1516356), (18, 1095146), (26, 758178), (36, 547573), (39, 505452), (52, 379089), (73, 270036), (78, 252726), (117, 168484), (146, 135018), (156, 126363), (219, 90012), (234, 84242), (292, 67509), (438, 45006), (468, 42121), (577, 34164), (657, 30004), (876, 22503), (949, 20772), (1154, 17082), (1314, 15002), (1731, 11388), (1898, 10386), (2308, 8541), (2628, 7501), (2847, 6924), (3462, 5694), (3796, 5193)]