21119888

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2039

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 23073712

約数列:

[1, 2, 4, 8, 16, 23, 29, 46, 58, 92, 116, 184, 232, 368, 464, 667, 1334, 1979, 2668, 3958, 5336, 7916, 10672, 15832, 31664, 45517, 57391, 91034, 114782, 182068, 229564, 364136, 459128, 728272, 918256, 1319993, 2639986, 5279972, 10559944, 21119888]

約数ペア:

[(1, 21119888), (2, 10559944), (4, 5279972), (8, 2639986), (16, 1319993), (23, 918256), (29, 728272), (46, 459128), (58, 364136), (92, 229564), (116, 182068), (184, 114782), (232, 91034), (368, 57391), (464, 45517), (667, 31664), (1334, 15832), (1979, 10672), (2668, 7916), (3958, 5336)]