28225899

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 48589632

約数和(自身を除く): 20363733

約数列:

[1, 3, 9, 13, 17, 23, 39, 51, 69, 117, 153, 207, 221, 299, 391, 617, 663, 897, 1173, 1851, 1989, 2691, 3519, 5083, 5553, 8021, 10489, 14191, 15249, 24063, 31467, 42573, 45747, 72189, 94401, 127719, 136357, 184483, 241247, 409071, 553449, 723741, 1227213, 1660347, 2171223, 3136211, 9408633, 28225899]

約数ペア:

[(1, 28225899), (3, 9408633), (9, 3136211), (13, 2171223), (17, 1660347), (23, 1227213), (39, 723741), (51, 553449), (69, 409071), (117, 241247), (153, 184483), (207, 136357), (221, 127719), (299, 94401), (391, 72189), (617, 45747), (663, 42573), (897, 31467), (1173, 24063), (1851, 15249), (1989, 14191), (2691, 10489), (3519, 8021), (5083, 5553)]