21543228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1613}}^1$

素因数の和:1683

約数の個数: 72

約数和(自身を含む): 63449568

約数和(自身を除く): 41906340

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, 1613, 1908, 2226, 3226, 3339, 4452, 4839, 6452, 6678, 9678, 11291, 13356, 14517, 19356, 22582, 29034, 33873, 45164, 58068, 67746, 85489, 101619, 135492, 170978, 203238, 256467, 341956, 406476, 512934, 598423, 769401, 1025868, 1196846, 1538802, 1795269, 2393692, 3077604, 3590538, 5385807, 7181076, 10771614, 21543228]

約数ペア:

[(1, 21543228), (2, 10771614), (3, 7181076), (4, 5385807), (6, 3590538), (7, 3077604), (9, 2393692), (12, 1795269), (14, 1538802), (18, 1196846), (21, 1025868), (28, 769401), (36, 598423), (42, 512934), (53, 406476), (63, 341956), (84, 256467), (106, 203238), (126, 170978), (159, 135492), (212, 101619), (252, 85489), (318, 67746), (371, 58068), (477, 45164), (636, 33873), (742, 29034), (954, 22582), (1113, 19356), (1484, 14517), (1613, 13356), (1908, 11291), (2226, 9678), (3226, 6678), (3339, 6452), (4452, 4839)]