21677552

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1281

約数の個数: 40

約数和(自身を含む): 45778320

約数和(自身を除く): 24100768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1157, 1171, 1424, 2314, 2342, 4628, 4684, 9256, 9368, 15223, 18512, 18736, 30446, 60892, 104219, 121784, 208438, 243568, 416876, 833752, 1354847, 1667504, 2709694, 5419388, 10838776, 21677552]

約数ペア:

[(1, 21677552), (2, 10838776), (4, 5419388), (8, 2709694), (13, 1667504), (16, 1354847), (26, 833752), (52, 416876), (89, 243568), (104, 208438), (178, 121784), (208, 104219), (356, 60892), (712, 30446), (1157, 18736), (1171, 18512), (1424, 15223), (2314, 9368), (2342, 9256), (4628, 4684)]