121231908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3461}}^1$

素因数の和:3617

約数の個数: 72

約数和(自身を含む): 352847040

約数和(自身を除く): 231615132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 834, 973, 1251, 1668, 1946, 2502, 2919, 3461, 3892, 5004, 5838, 6922, 8757, 10383, 11676, 13844, 17514, 20766, 24227, 31149, 35028, 41532, 48454, 62298, 72681, 96908, 124596, 145362, 218043, 290724, 436086, 481079, 872172, 962158, 1443237, 1924316, 2886474, 3367553, 4329711, 5772948, 6735106, 8659422, 10102659, 13470212, 17318844, 20205318, 30307977, 40410636, 60615954, 121231908]

約数ペア:

[(1, 121231908), (2, 60615954), (3, 40410636), (4, 30307977), (6, 20205318), (7, 17318844), (9, 13470212), (12, 10102659), (14, 8659422), (18, 6735106), (21, 5772948), (28, 4329711), (36, 3367553), (42, 2886474), (63, 1924316), (84, 1443237), (126, 962158), (139, 872172), (252, 481079), (278, 436086), (417, 290724), (556, 218043), (834, 145362), (973, 124596), (1251, 96908), (1668, 72681), (1946, 62298), (2502, 48454), (2919, 41532), (3461, 35028), (3892, 31149), (5004, 24227), (5838, 20766), (6922, 17514), (8757, 13844), (10383, 11676)]