21666016

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 45390240

約数和(自身を除く): 23724224

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 58, 74, 116, 148, 232, 296, 464, 592, 631, 928, 1073, 1184, 1262, 2146, 2524, 4292, 5048, 8584, 10096, 17168, 18299, 20192, 23347, 34336, 36598, 46694, 73196, 93388, 146392, 186776, 292784, 373552, 585568, 677063, 747104, 1354126, 2708252, 5416504, 10833008, 21666016]

約数ペア:

[(1, 21666016), (2, 10833008), (4, 5416504), (8, 2708252), (16, 1354126), (29, 747104), (32, 677063), (37, 585568), (58, 373552), (74, 292784), (116, 186776), (148, 146392), (232, 93388), (296, 73196), (464, 46694), (592, 36598), (631, 34336), (928, 23347), (1073, 20192), (1184, 18299), (1262, 17168), (2146, 10096), (2524, 8584), (4292, 5048)]