21807012

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^3\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 53441024

約数和(自身を除く): 31634012

約数列:

[1, 2, 3, 4, 6, 12, 31, 61, 62, 93, 122, 124, 183, 186, 244, 366, 372, 732, 961, 1891, 1922, 2883, 3782, 3844, 5673, 5766, 7564, 11346, 11532, 22692, 29791, 58621, 59582, 89373, 117242, 119164, 175863, 178746, 234484, 351726, 357492, 703452, 1817251, 3634502, 5451753, 7269004, 10903506, 21807012]

約数ペア:

[(1, 21807012), (2, 10903506), (3, 7269004), (4, 5451753), (6, 3634502), (12, 1817251), (31, 703452), (61, 357492), (62, 351726), (93, 234484), (122, 178746), (124, 175863), (183, 119164), (186, 117242), (244, 89373), (366, 59582), (372, 58621), (732, 29791), (961, 22692), (1891, 11532), (1922, 11346), (2883, 7564), (3782, 5766), (3844, 5673)]