21253386

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 32245494

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 179, 231, 257, 358, 462, 514, 537, 771, 1074, 1253, 1542, 1799, 1969, 2506, 2827, 3598, 3759, 3938, 5397, 5654, 5907, 7518, 8481, 10794, 11814, 13783, 16962, 19789, 27566, 39578, 41349, 46003, 59367, 82698, 92006, 118734, 138009, 276018, 322021, 506033, 644042, 966063, 1012066, 1518099, 1932126, 3036198, 3542231, 7084462, 10626693, 21253386]

約数ペア:

[(1, 21253386), (2, 10626693), (3, 7084462), (6, 3542231), (7, 3036198), (11, 1932126), (14, 1518099), (21, 1012066), (22, 966063), (33, 644042), (42, 506033), (66, 322021), (77, 276018), (154, 138009), (179, 118734), (231, 92006), (257, 82698), (358, 59367), (462, 46003), (514, 41349), (537, 39578), (771, 27566), (1074, 19789), (1253, 16962), (1542, 13783), (1799, 11814), (1969, 10794), (2506, 8481), (2827, 7518), (3598, 5907), (3759, 5654), (3938, 5397)]