21000314868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2539951}}^1$

素因数の和:2540024

約数の個数: 48

約数和(自身を含む): 53765703936

約数和(自身を除く): 32765389068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2756, 4134, 8268, 2539951, 5079902, 7619853, 10159804, 15239706, 30479412, 33019363, 66038726, 99058089, 132077452, 134617403, 198116178, 269234806, 396232356, 403852209, 538469612, 807704418, 1615408836, 1750026239, 3500052478, 5250078717, 7000104956, 10500157434, 21000314868]

約数ペア:

[(1, 21000314868), (2, 10500157434), (3, 7000104956), (4, 5250078717), (6, 3500052478), (12, 1750026239), (13, 1615408836), (26, 807704418), (39, 538469612), (52, 403852209), (53, 396232356), (78, 269234806), (106, 198116178), (156, 134617403), (159, 132077452), (212, 99058089), (318, 66038726), (636, 33019363), (689, 30479412), (1378, 15239706), (2067, 10159804), (2756, 7619853), (4134, 5079902), (8268, 2539951)]