21408492

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1583}}^1$

素因数の和:1627

約数の個数: 72

約数和(自身を含む): 60673536

約数和(自身を除く): 39265044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 69, 84, 92, 98, 138, 147, 161, 196, 276, 294, 322, 483, 588, 644, 966, 1127, 1583, 1932, 2254, 3166, 3381, 4508, 4749, 6332, 6762, 9498, 11081, 13524, 18996, 22162, 33243, 36409, 44324, 66486, 72818, 77567, 109227, 132972, 145636, 155134, 218454, 232701, 254863, 310268, 436908, 465402, 509726, 764589, 930804, 1019452, 1529178, 1784041, 3058356, 3568082, 5352123, 7136164, 10704246, 21408492]

約数ペア:

[(1, 21408492), (2, 10704246), (3, 7136164), (4, 5352123), (6, 3568082), (7, 3058356), (12, 1784041), (14, 1529178), (21, 1019452), (23, 930804), (28, 764589), (42, 509726), (46, 465402), (49, 436908), (69, 310268), (84, 254863), (92, 232701), (98, 218454), (138, 155134), (147, 145636), (161, 132972), (196, 109227), (276, 77567), (294, 72818), (322, 66486), (483, 44324), (588, 36409), (644, 33243), (966, 22162), (1127, 18996), (1583, 13524), (1932, 11081), (2254, 9498), (3166, 6762), (3381, 6332), (4508, 4749)]