19388259

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 32248320

約数和(自身を除く): 12860061

約数列:

[1, 3, 9, 11, 33, 37, 67, 79, 99, 111, 201, 237, 333, 407, 603, 711, 737, 869, 1221, 2211, 2479, 2607, 2923, 3663, 5293, 6633, 7437, 7821, 8769, 15879, 22311, 26307, 27269, 32153, 47637, 58223, 81807, 96459, 174669, 195841, 245421, 289377, 524007, 587523, 1762569, 2154251, 6462753, 19388259]

約数ペア:

[(1, 19388259), (3, 6462753), (9, 2154251), (11, 1762569), (33, 587523), (37, 524007), (67, 289377), (79, 245421), (99, 195841), (111, 174669), (201, 96459), (237, 81807), (333, 58223), (407, 47637), (603, 32153), (711, 27269), (737, 26307), (869, 22311), (1221, 15879), (2211, 8769), (2479, 7821), (2607, 7437), (2923, 6633), (3663, 5293)]