21749532

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 60367104

約数和(自身を除く): 38617572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 49, 84, 94, 98, 141, 147, 188, 196, 282, 294, 329, 564, 588, 658, 787, 987, 1316, 1574, 1974, 2303, 2361, 3148, 3948, 4606, 4722, 5509, 6909, 9212, 9444, 11018, 13818, 16527, 22036, 27636, 33054, 36989, 38563, 66108, 73978, 77126, 110967, 115689, 147956, 154252, 221934, 231378, 258923, 443868, 462756, 517846, 776769, 1035692, 1553538, 1812461, 3107076, 3624922, 5437383, 7249844, 10874766, 21749532]

約数ペア:

[(1, 21749532), (2, 10874766), (3, 7249844), (4, 5437383), (6, 3624922), (7, 3107076), (12, 1812461), (14, 1553538), (21, 1035692), (28, 776769), (42, 517846), (47, 462756), (49, 443868), (84, 258923), (94, 231378), (98, 221934), (141, 154252), (147, 147956), (188, 115689), (196, 110967), (282, 77126), (294, 73978), (329, 66108), (564, 38563), (588, 36989), (658, 33054), (787, 27636), (987, 22036), (1316, 16527), (1574, 13818), (1974, 11018), (2303, 9444), (2361, 9212), (3148, 6909), (3948, 5509), (4606, 4722)]