21513008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:3993

約数の個数: 40

約数和(自身を含む): 46949376

約数和(自身を除く): 25436368

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3943, 5456, 7886, 15772, 31544, 43373, 63088, 86746, 122233, 173492, 244466, 346984, 488932, 693968, 977864, 1344563, 1955728, 2689126, 5378252, 10756504, 21513008]

約数ペア:

[(1, 21513008), (2, 10756504), (4, 5378252), (8, 2689126), (11, 1955728), (16, 1344563), (22, 977864), (31, 693968), (44, 488932), (62, 346984), (88, 244466), (124, 173492), (176, 122233), (248, 86746), (341, 63088), (496, 43373), (682, 31544), (1364, 15772), (2728, 7886), (3943, 5456)]