20977944

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 36357096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 71, 78, 104, 142, 156, 213, 284, 312, 426, 568, 852, 923, 947, 1704, 1846, 1894, 2769, 2841, 3692, 3788, 5538, 5682, 7384, 7576, 11076, 11364, 12311, 22152, 22728, 24622, 36933, 49244, 67237, 73866, 98488, 134474, 147732, 201711, 268948, 295464, 403422, 537896, 806844, 874081, 1613688, 1748162, 2622243, 3496324, 5244486, 6992648, 10488972, 20977944]

約数ペア:

[(1, 20977944), (2, 10488972), (3, 6992648), (4, 5244486), (6, 3496324), (8, 2622243), (12, 1748162), (13, 1613688), (24, 874081), (26, 806844), (39, 537896), (52, 403422), (71, 295464), (78, 268948), (104, 201711), (142, 147732), (156, 134474), (213, 98488), (284, 73866), (312, 67237), (426, 49244), (568, 36933), (852, 24622), (923, 22728), (947, 22152), (1704, 12311), (1846, 11364), (1894, 11076), (2769, 7576), (2841, 7384), (3692, 5682), (3788, 5538)]