21419706

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 54245376

約数和(自身を除く): 32825670

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 71, 77, 142, 154, 213, 231, 426, 462, 497, 653, 781, 994, 1306, 1491, 1562, 1959, 2343, 2982, 3918, 4571, 4686, 5467, 7183, 9142, 10934, 13713, 14366, 16401, 21549, 27426, 32802, 43098, 46363, 50281, 92726, 100562, 139089, 150843, 278178, 301686, 324541, 509993, 649082, 973623, 1019986, 1529979, 1947246, 3059958, 3569951, 7139902, 10709853, 21419706]

約数ペア:

[(1, 21419706), (2, 10709853), (3, 7139902), (6, 3569951), (7, 3059958), (11, 1947246), (14, 1529979), (21, 1019986), (22, 973623), (33, 649082), (42, 509993), (66, 324541), (71, 301686), (77, 278178), (142, 150843), (154, 139089), (213, 100562), (231, 92726), (426, 50281), (462, 46363), (497, 43098), (653, 32802), (781, 27426), (994, 21549), (1306, 16401), (1491, 14366), (1562, 13713), (1959, 10934), (2343, 9142), (2982, 7183), (3918, 5467), (4571, 4686)]