19413728

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 40932864

約数和(自身を除く): 21519136

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 127, 136, 254, 272, 281, 508, 544, 562, 1016, 1124, 2032, 2159, 2248, 4064, 4318, 4496, 4777, 8636, 8992, 9554, 17272, 19108, 34544, 35687, 38216, 69088, 71374, 76432, 142748, 152864, 285496, 570992, 606679, 1141984, 1213358, 2426716, 4853432, 9706864, 19413728]

約数ペア:

[(1, 19413728), (2, 9706864), (4, 4853432), (8, 2426716), (16, 1213358), (17, 1141984), (32, 606679), (34, 570992), (68, 285496), (127, 152864), (136, 142748), (254, 76432), (272, 71374), (281, 69088), (508, 38216), (544, 35687), (562, 34544), (1016, 19108), (1124, 17272), (2032, 9554), (2159, 8992), (2248, 8636), (4064, 4777), (4318, 4496)]