19491112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 40942260

約数和(自身を除く): 21451148

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 361, 397, 646, 722, 794, 1292, 1444, 1588, 2584, 2888, 3176, 6137, 6749, 7543, 12274, 13498, 15086, 24548, 26996, 30172, 49096, 53992, 60344, 128231, 143317, 256462, 286634, 512924, 573268, 1025848, 1146536, 2436389, 4872778, 9745556, 19491112]

約数ペア:

[(1, 19491112), (2, 9745556), (4, 4872778), (8, 2436389), (17, 1146536), (19, 1025848), (34, 573268), (38, 512924), (68, 286634), (76, 256462), (136, 143317), (152, 128231), (323, 60344), (361, 53992), (397, 49096), (646, 30172), (722, 26996), (794, 24548), (1292, 15086), (1444, 13498), (1588, 12274), (2584, 7543), (2888, 6749), (3176, 6137)]