21142548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1583}}^1$

素因数の和:1653

約数の個数: 72

約数和(自身を含む): 62270208

約数和(自身を除く): 41127660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1583, 1908, 2226, 3166, 3339, 4452, 4749, 6332, 6678, 9498, 11081, 13356, 14247, 18996, 22162, 28494, 33243, 44324, 56988, 66486, 83899, 99729, 132972, 167798, 199458, 251697, 335596, 398916, 503394, 587293, 755091, 1006788, 1174586, 1510182, 1761879, 2349172, 3020364, 3523758, 5285637, 7047516, 10571274, 21142548]

約数ペア:

[(1, 21142548), (2, 10571274), (3, 7047516), (4, 5285637), (6, 3523758), (7, 3020364), (9, 2349172), (12, 1761879), (14, 1510182), (18, 1174586), (21, 1006788), (28, 755091), (36, 587293), (42, 503394), (53, 398916), (63, 335596), (84, 251697), (106, 199458), (126, 167798), (159, 132972), (212, 99729), (252, 83899), (318, 66486), (371, 56988), (477, 44324), (636, 33243), (742, 28494), (954, 22162), (1113, 18996), (1484, 14247), (1583, 13356), (1908, 11081), (2226, 9498), (3166, 6678), (3339, 6332), (4452, 4749)]