202121451

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 343549440

約数和(自身を除く): 141427989

約数列:

[1, 3, 7, 9, 21, 63, 71, 73, 213, 219, 497, 511, 619, 639, 657, 1491, 1533, 1857, 4333, 4473, 4599, 5183, 5571, 12999, 15549, 36281, 38997, 43949, 45187, 46647, 108843, 131847, 135561, 307643, 316309, 326529, 395541, 406683, 922929, 948927, 2768787, 2846781, 3208277, 9624831, 22457939, 28874493, 67373817, 202121451]

約数ペア:

[(1, 202121451), (3, 67373817), (7, 28874493), (9, 22457939), (21, 9624831), (63, 3208277), (71, 2846781), (73, 2768787), (213, 948927), (219, 922929), (497, 406683), (511, 395541), (619, 326529), (639, 316309), (657, 307643), (1491, 135561), (1533, 131847), (1857, 108843), (4333, 46647), (4473, 45187), (4599, 43949), (5183, 38997), (5571, 36281), (12999, 15549)]