21591612

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1823}}^1$

素因数の和:1887

約数の個数: 72

約数和(自身を含む): 63737856

約数和(自身を除く): 42146244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1823, 1974, 2961, 3646, 3948, 5469, 5922, 7292, 10938, 11844, 12761, 16407, 21876, 25522, 32814, 38283, 51044, 65628, 76566, 85681, 114849, 153132, 171362, 229698, 257043, 342724, 459396, 514086, 599767, 771129, 1028172, 1199534, 1542258, 1799301, 2399068, 3084516, 3598602, 5397903, 7197204, 10795806, 21591612]

約数ペア:

[(1, 21591612), (2, 10795806), (3, 7197204), (4, 5397903), (6, 3598602), (7, 3084516), (9, 2399068), (12, 1799301), (14, 1542258), (18, 1199534), (21, 1028172), (28, 771129), (36, 599767), (42, 514086), (47, 459396), (63, 342724), (84, 257043), (94, 229698), (126, 171362), (141, 153132), (188, 114849), (252, 85681), (282, 76566), (329, 65628), (423, 51044), (564, 38283), (658, 32814), (846, 25522), (987, 21876), (1316, 16407), (1692, 12761), (1823, 11844), (1974, 10938), (2961, 7292), (3646, 5922), (3948, 5469)]