21531112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5107}}^1$

素因数の和:5161

約数の個数: 32

約数和(自身を含む): 44133120

約数和(自身を除く): 22602008

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 5107, 10214, 20428, 40856, 86819, 158317, 173638, 316634, 347276, 633268, 694552, 1266536, 2691389, 5382778, 10765556, 21531112]

約数ペア:

[(1, 21531112), (2, 10765556), (4, 5382778), (8, 2691389), (17, 1266536), (31, 694552), (34, 633268), (62, 347276), (68, 316634), (124, 173638), (136, 158317), (248, 86819), (527, 40856), (1054, 20428), (2108, 10214), (4216, 5107)]