21770656

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 24163904

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 76, 122, 152, 244, 304, 488, 587, 608, 976, 1159, 1174, 1952, 2318, 2348, 4636, 4696, 9272, 9392, 11153, 18544, 18784, 22306, 35807, 37088, 44612, 71614, 89224, 143228, 178448, 286456, 356896, 572912, 680333, 1145824, 1360666, 2721332, 5442664, 10885328, 21770656]

約数ペア:

[(1, 21770656), (2, 10885328), (4, 5442664), (8, 2721332), (16, 1360666), (19, 1145824), (32, 680333), (38, 572912), (61, 356896), (76, 286456), (122, 178448), (152, 143228), (244, 89224), (304, 71614), (488, 44612), (587, 37088), (608, 35807), (976, 22306), (1159, 18784), (1174, 18544), (1952, 11153), (2318, 9392), (2348, 9272), (4636, 4696)]