21749004

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 57028608

約数和(自身を除く): 35279604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 71, 127, 134, 142, 201, 213, 254, 268, 284, 381, 402, 426, 508, 603, 639, 762, 804, 852, 1143, 1206, 1278, 1524, 2286, 2412, 2556, 4572, 4757, 8509, 9017, 9514, 14271, 17018, 18034, 19028, 25527, 27051, 28542, 34036, 36068, 42813, 51054, 54102, 57084, 76581, 81153, 85626, 102108, 108204, 153162, 162306, 171252, 306324, 324612, 604139, 1208278, 1812417, 2416556, 3624834, 5437251, 7249668, 10874502, 21749004]

約数ペア:

[(1, 21749004), (2, 10874502), (3, 7249668), (4, 5437251), (6, 3624834), (9, 2416556), (12, 1812417), (18, 1208278), (36, 604139), (67, 324612), (71, 306324), (127, 171252), (134, 162306), (142, 153162), (201, 108204), (213, 102108), (254, 85626), (268, 81153), (284, 76581), (381, 57084), (402, 54102), (426, 51054), (508, 42813), (603, 36068), (639, 34036), (762, 28542), (804, 27051), (852, 25527), (1143, 19028), (1206, 18034), (1278, 17018), (1524, 14271), (2286, 9514), (2412, 9017), (2556, 8509), (4572, 4757)]