21980646

素因数分解:

$2^1\times 3^4\times {\mathrm{241}}^1\times {\mathrm{563}}^1$

素因数の和:818

約数の個数: 40

約数和(自身を含む): 49545144

約数和(自身を除く): 27564498

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 241, 482, 563, 723, 1126, 1446, 1689, 2169, 3378, 4338, 5067, 6507, 10134, 13014, 15201, 19521, 30402, 39042, 45603, 91206, 135683, 271366, 407049, 814098, 1221147, 2442294, 3663441, 7326882, 10990323, 21980646]

約数ペア:

[(1, 21980646), (2, 10990323), (3, 7326882), (6, 3663441), (9, 2442294), (18, 1221147), (27, 814098), (54, 407049), (81, 271366), (162, 135683), (241, 91206), (482, 45603), (563, 39042), (723, 30402), (1126, 19521), (1446, 15201), (1689, 13014), (2169, 10134), (3378, 6507), (4338, 5067)]