21661354

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 19706966

約数列:

[1, 2, 11, 13, 22, 23, 26, 37, 46, 74, 89, 143, 178, 253, 286, 299, 407, 481, 506, 598, 814, 851, 962, 979, 1157, 1702, 1958, 2047, 2314, 3289, 3293, 4094, 5291, 6578, 6586, 9361, 10582, 11063, 12727, 18722, 22126, 22517, 25454, 26611, 36223, 42809, 45034, 53222, 72446, 75739, 85618, 121693, 151478, 243386, 292721, 470899, 585442, 833129, 941798, 984607, 1666258, 1969214, 10830677, 21661354]

約数ペア:

[(1, 21661354), (2, 10830677), (11, 1969214), (13, 1666258), (22, 984607), (23, 941798), (26, 833129), (37, 585442), (46, 470899), (74, 292721), (89, 243386), (143, 151478), (178, 121693), (253, 85618), (286, 75739), (299, 72446), (407, 53222), (481, 45034), (506, 42809), (598, 36223), (814, 26611), (851, 25454), (962, 22517), (979, 22126), (1157, 18722), (1702, 12727), (1958, 11063), (2047, 10582), (2314, 9361), (3289, 6586), (3293, 6578), (4094, 5291)]