19170016

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 40415760

約数和(自身を除く): 21245744

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 131, 136, 262, 269, 272, 524, 538, 544, 1048, 1076, 2096, 2152, 2227, 4192, 4304, 4454, 4573, 8608, 8908, 9146, 17816, 18292, 35239, 35632, 36584, 70478, 71264, 73168, 140956, 146336, 281912, 563824, 599063, 1127648, 1198126, 2396252, 4792504, 9585008, 19170016]

約数ペア:

[(1, 19170016), (2, 9585008), (4, 4792504), (8, 2396252), (16, 1198126), (17, 1127648), (32, 599063), (34, 563824), (68, 281912), (131, 146336), (136, 140956), (262, 73168), (269, 71264), (272, 70478), (524, 36584), (538, 35632), (544, 35239), (1048, 18292), (1076, 17816), (2096, 9146), (2152, 8908), (2227, 8608), (4192, 4573), (4304, 4454)]