21194913920

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{807733}}^1$

素因数の和:807793

約数の個数: 64

約数和(自身を含む): 51904986840

約数和(自身を除く): 30710072920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1312, 1640, 2624, 3280, 5248, 6560, 13120, 26240, 807733, 1615466, 3230932, 4038665, 6461864, 8077330, 12923728, 16154660, 25847456, 32309320, 33117053, 51694912, 64618640, 66234106, 103389824, 129237280, 132468212, 165585265, 258474560, 264936424, 331170530, 516949120, 529872848, 662341060, 1059745696, 1324682120, 2119491392, 2649364240, 4238982784, 5298728480, 10597456960, 21194913920]

約数ペア:

[(1, 21194913920), (2, 10597456960), (4, 5298728480), (5, 4238982784), (8, 2649364240), (10, 2119491392), (16, 1324682120), (20, 1059745696), (32, 662341060), (40, 529872848), (41, 516949120), (64, 331170530), (80, 264936424), (82, 258474560), (128, 165585265), (160, 132468212), (164, 129237280), (205, 103389824), (320, 66234106), (328, 64618640), (410, 51694912), (640, 33117053), (656, 32309320), (820, 25847456), (1312, 16154660), (1640, 12923728), (2624, 8077330), (3280, 6461864), (5248, 4038665), (6560, 3230932), (13120, 1615466), (26240, 807733)]