21297367660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1\times {\mathrm{1187}}^1$

素因数の和:1943

約数の個数: 96

約数和(自身を含む): 47350904832

約数和(自身を除く): 26053537172

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 673, 860, 1187, 1333, 1346, 2374, 2666, 2692, 3365, 4748, 5332, 5935, 6665, 6730, 11870, 13330, 13460, 20863, 23740, 26660, 28939, 36797, 41726, 51041, 57878, 73594, 83452, 102082, 104315, 115756, 144695, 147188, 183985, 204164, 208630, 255205, 289390, 367970, 417260, 510410, 578780, 735940, 798851, 897109, 1020820, 1582271, 1597702, 1794218, 3164542, 3195404, 3588436, 3994255, 4485545, 6329084, 7911355, 7988510, 8971090, 15822710, 15977020, 17942180, 24764381, 31645420, 34350593, 49528762, 68701186, 99057524, 123821905, 137402372, 171752965, 247643810, 343505930, 495287620, 687011860, 1064868383, 2129736766, 4259473532, 5324341915, 10648683830, 21297367660]

約数ペア:

[(1, 21297367660), (2, 10648683830), (4, 5324341915), (5, 4259473532), (10, 2129736766), (20, 1064868383), (31, 687011860), (43, 495287620), (62, 343505930), (86, 247643810), (124, 171752965), (155, 137402372), (172, 123821905), (215, 99057524), (310, 68701186), (430, 49528762), (620, 34350593), (673, 31645420), (860, 24764381), (1187, 17942180), (1333, 15977020), (1346, 15822710), (2374, 8971090), (2666, 7988510), (2692, 7911355), (3365, 6329084), (4748, 4485545), (5332, 3994255), (5935, 3588436), (6665, 3195404), (6730, 3164542), (11870, 1794218), (13330, 1597702), (13460, 1582271), (20863, 1020820), (23740, 897109), (26660, 798851), (28939, 735940), (36797, 578780), (41726, 510410), (51041, 417260), (57878, 367970), (73594, 289390), (83452, 255205), (102082, 208630), (104315, 204164), (115756, 183985), (144695, 147188)]