19684845

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 35822592

約数和(自身を除く): 16137747

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 103, 137, 155, 279, 309, 411, 465, 515, 685, 927, 1233, 1395, 1545, 2055, 3193, 4247, 4635, 6165, 9579, 12741, 14111, 15965, 21235, 28737, 38223, 42333, 47895, 63705, 70555, 126999, 143685, 191115, 211665, 437441, 634995, 1312323, 2187205, 3936969, 6561615, 19684845]

約数ペア:

[(1, 19684845), (3, 6561615), (5, 3936969), (9, 2187205), (15, 1312323), (31, 634995), (45, 437441), (93, 211665), (103, 191115), (137, 143685), (155, 126999), (279, 70555), (309, 63705), (411, 47895), (465, 42333), (515, 38223), (685, 28737), (927, 21235), (1233, 15965), (1395, 14111), (1545, 12741), (2055, 9579), (3193, 6165), (4247, 4635)]