21797646

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 49260288

約数和(自身を除く): 27462642

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 67, 78, 86, 97, 129, 134, 194, 201, 258, 291, 402, 559, 582, 871, 1118, 1261, 1677, 1742, 2522, 2613, 2881, 3354, 3783, 4171, 5226, 5762, 6499, 7566, 8342, 8643, 12513, 12998, 17286, 19497, 25026, 37453, 38994, 54223, 74906, 84487, 108446, 112359, 162669, 168974, 224718, 253461, 279457, 325338, 506922, 558914, 838371, 1676742, 3632941, 7265882, 10898823, 21797646]

約数ペア:

[(1, 21797646), (2, 10898823), (3, 7265882), (6, 3632941), (13, 1676742), (26, 838371), (39, 558914), (43, 506922), (67, 325338), (78, 279457), (86, 253461), (97, 224718), (129, 168974), (134, 162669), (194, 112359), (201, 108446), (258, 84487), (291, 74906), (402, 54223), (559, 38994), (582, 37453), (871, 25026), (1118, 19497), (1261, 17286), (1677, 12998), (1742, 12513), (2522, 8643), (2613, 8342), (2881, 7566), (3354, 6499), (3783, 5762), (4171, 5226)]