21228396

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:363

約数の個数: 96

約数和(自身を含む): 61071360

約数和(自身を除く): 39842964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 47, 57, 76, 84, 94, 114, 133, 141, 188, 228, 266, 282, 283, 329, 399, 532, 564, 566, 658, 798, 849, 893, 987, 1132, 1316, 1596, 1698, 1786, 1974, 1981, 2679, 3396, 3572, 3948, 3962, 5358, 5377, 5943, 6251, 7924, 10716, 10754, 11886, 12502, 13301, 16131, 18753, 21508, 23772, 25004, 26602, 32262, 37506, 37639, 39903, 53204, 64524, 75012, 75278, 79806, 93107, 112917, 150556, 159612, 186214, 225834, 252719, 279321, 372428, 451668, 505438, 558642, 758157, 1010876, 1117284, 1516314, 1769033, 3032628, 3538066, 5307099, 7076132, 10614198, 21228396]

約数ペア:

[(1, 21228396), (2, 10614198), (3, 7076132), (4, 5307099), (6, 3538066), (7, 3032628), (12, 1769033), (14, 1516314), (19, 1117284), (21, 1010876), (28, 758157), (38, 558642), (42, 505438), (47, 451668), (57, 372428), (76, 279321), (84, 252719), (94, 225834), (114, 186214), (133, 159612), (141, 150556), (188, 112917), (228, 93107), (266, 79806), (282, 75278), (283, 75012), (329, 64524), (399, 53204), (532, 39903), (564, 37639), (566, 37506), (658, 32262), (798, 26602), (849, 25004), (893, 23772), (987, 21508), (1132, 18753), (1316, 16131), (1596, 13301), (1698, 12502), (1786, 11886), (1974, 10754), (1981, 10716), (2679, 7924), (3396, 6251), (3572, 5943), (3948, 5377), (3962, 5358)]