21795664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3347}}^1$

素因数の和:3403

約数の個数: 40

約数和(自身を含む): 47327328

約数和(自身を除く): 25531664

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3256, 3347, 6512, 6694, 13388, 26776, 36817, 53552, 73634, 123839, 147268, 247678, 294536, 495356, 589072, 990712, 1362229, 1981424, 2724458, 5448916, 10897832, 21795664]

約数ペア:

[(1, 21795664), (2, 10897832), (4, 5448916), (8, 2724458), (11, 1981424), (16, 1362229), (22, 990712), (37, 589072), (44, 495356), (74, 294536), (88, 247678), (148, 147268), (176, 123839), (296, 73634), (407, 53552), (592, 36817), (814, 26776), (1628, 13388), (3256, 6694), (3347, 6512)]