21283816

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19540184

約数列:

[1, 2, 4, 8, 89, 167, 178, 179, 334, 356, 358, 668, 712, 716, 1336, 1432, 14863, 15931, 29726, 29893, 31862, 59452, 59786, 63724, 118904, 119572, 127448, 239144, 2660477, 5320954, 10641908, 21283816]

約数ペア:

[(1, 21283816), (2, 10641908), (4, 5320954), (8, 2660477), (89, 239144), (167, 127448), (178, 119572), (179, 118904), (334, 63724), (356, 59786), (358, 59452), (668, 31862), (712, 29893), (716, 29726), (1336, 15931), (1432, 14863)]