1215174961

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2843}}^1$

素因数の和:2942

約数の個数: 48

約数和(自身を含む): 1688516928

約数和(自身を除く): 473341967

約数列:

[1, 7, 11, 13, 49, 61, 77, 91, 143, 427, 539, 637, 671, 793, 1001, 2843, 2989, 4697, 5551, 7007, 8723, 19901, 31273, 32879, 36959, 38857, 61061, 139307, 173423, 218911, 258713, 406549, 427427, 1213961, 1532377, 1810991, 1907653, 2254499, 2845843, 8497727, 13353571, 15781493, 19920901, 24799489, 93474997, 110470451, 173596423, 1215174961]

約数ペア:

[(1, 1215174961), (7, 173596423), (11, 110470451), (13, 93474997), (49, 24799489), (61, 19920901), (77, 15781493), (91, 13353571), (143, 8497727), (427, 2845843), (539, 2254499), (637, 1907653), (671, 1810991), (793, 1532377), (1001, 1213961), (2843, 427427), (2989, 406549), (4697, 258713), (5551, 218911), (7007, 173423), (8723, 139307), (19901, 61061), (31273, 38857), (32879, 36959)]