21031092

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^2\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 54

約数和(自身を含む): 54391974

約数和(自身を除く): 33360882

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 157, 183, 244, 314, 366, 471, 549, 628, 732, 942, 1098, 1413, 1884, 2196, 2826, 3721, 5652, 7442, 9577, 11163, 14884, 19154, 22326, 28731, 33489, 38308, 44652, 57462, 66978, 86193, 114924, 133956, 172386, 344772, 584197, 1168394, 1752591, 2336788, 3505182, 5257773, 7010364, 10515546, 21031092]

約数ペア:

[(1, 21031092), (2, 10515546), (3, 7010364), (4, 5257773), (6, 3505182), (9, 2336788), (12, 1752591), (18, 1168394), (36, 584197), (61, 344772), (122, 172386), (157, 133956), (183, 114924), (244, 86193), (314, 66978), (366, 57462), (471, 44652), (549, 38308), (628, 33489), (732, 28731), (942, 22326), (1098, 19154), (1413, 14884), (1884, 11163), (2196, 9577), (2826, 7442), (3721, 5652)]