51441417

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:338

約数の個数: 36

約数和(自身を含む): 79881984

約数和(自身を除く): 28440567

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 223, 361, 639, 669, 1083, 1349, 2007, 3249, 4047, 4237, 12141, 12711, 15833, 25631, 38133, 47499, 76893, 80503, 142497, 230679, 241509, 300827, 724527, 902481, 2707443, 5715713, 17147139, 51441417]

約数ペア:

[(1, 51441417), (3, 17147139), (9, 5715713), (19, 2707443), (57, 902481), (71, 724527), (171, 300827), (213, 241509), (223, 230679), (361, 142497), (639, 80503), (669, 76893), (1083, 47499), (1349, 38133), (2007, 25631), (3249, 15833), (4047, 12711), (4237, 12141)]