19661248

素因数分解:

$2^6\times {\mathrm{17}}^2\times {\mathrm{1063}}^1$

素因数の和:1109

約数の個数: 42

約数和(自身を含む): 41484296

約数和(自身を除く): 21823048

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 289, 544, 578, 1063, 1088, 1156, 2126, 2312, 4252, 4624, 8504, 9248, 17008, 18071, 18496, 34016, 36142, 68032, 72284, 144568, 289136, 307207, 578272, 614414, 1156544, 1228828, 2457656, 4915312, 9830624, 19661248]

約数ペア:

[(1, 19661248), (2, 9830624), (4, 4915312), (8, 2457656), (16, 1228828), (17, 1156544), (32, 614414), (34, 578272), (64, 307207), (68, 289136), (136, 144568), (272, 72284), (289, 68032), (544, 36142), (578, 34016), (1063, 18496), (1088, 18071), (1156, 17008), (2126, 9248), (2312, 8504), (4252, 4624)]