221297384

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{2969}}^1$

素因数の和:3015

約数の個数: 64

約数和(自身を含む): 521769600

約数和(自身を除く): 300472216

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1331, 1694, 2662, 2969, 3388, 5324, 5938, 6776, 9317, 10648, 11876, 18634, 20783, 23752, 32659, 37268, 41566, 65318, 74536, 83132, 130636, 166264, 228613, 261272, 359249, 457226, 718498, 914452, 1436996, 1828904, 2514743, 2873992, 3951739, 5029486, 7903478, 10058972, 15806956, 20117944, 27662173, 31613912, 55324346, 110648692, 221297384]

約数ペア:

[(1, 221297384), (2, 110648692), (4, 55324346), (7, 31613912), (8, 27662173), (11, 20117944), (14, 15806956), (22, 10058972), (28, 7903478), (44, 5029486), (56, 3951739), (77, 2873992), (88, 2514743), (121, 1828904), (154, 1436996), (242, 914452), (308, 718498), (484, 457226), (616, 359249), (847, 261272), (968, 228613), (1331, 166264), (1694, 130636), (2662, 83132), (2969, 74536), (3388, 65318), (5324, 41566), (5938, 37268), (6776, 32659), (9317, 23752), (10648, 20783), (11876, 18634)]