21086024896

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{403267}}^1$

素因数の和:403341

約数の個数: 56

約数和(自身を含む): 45069231680

約数和(自身を除く): 23983206784

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 152, 172, 304, 344, 608, 688, 817, 1216, 1376, 1634, 2752, 3268, 6536, 13072, 26144, 52288, 403267, 806534, 1613068, 3226136, 6452272, 7662073, 12904544, 15324146, 17340481, 25809088, 30648292, 34680962, 61296584, 69361924, 122593168, 138723848, 245186336, 277447696, 329469139, 490372672, 554895392, 658938278, 1109790784, 1317876556, 2635753112, 5271506224, 10543012448, 21086024896]

約数ペア:

[(1, 21086024896), (2, 10543012448), (4, 5271506224), (8, 2635753112), (16, 1317876556), (19, 1109790784), (32, 658938278), (38, 554895392), (43, 490372672), (64, 329469139), (76, 277447696), (86, 245186336), (152, 138723848), (172, 122593168), (304, 69361924), (344, 61296584), (608, 34680962), (688, 30648292), (817, 25809088), (1216, 17340481), (1376, 15324146), (1634, 12904544), (2752, 7662073), (3268, 6452272), (6536, 3226136), (13072, 1613068), (26144, 806534), (52288, 403267)]