21388256

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12611}}^1$

素因数の和:12674

約数の個数: 24

約数和(自身を含む): 42906024

約数和(自身を除く): 21517768

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12611, 25222, 50444, 100888, 201776, 403552, 668383, 1336766, 2673532, 5347064, 10694128, 21388256]

約数ペア:

[(1, 21388256), (2, 10694128), (4, 5347064), (8, 2673532), (16, 1336766), (32, 668383), (53, 403552), (106, 201776), (212, 100888), (424, 50444), (848, 25222), (1696, 12611)]