20999088

素因数分解:

$2^4\times 3^5\times {\mathrm{11}}^1\times {\mathrm{491}}^1$

素因数の和:525

約数の個数: 120

約数和(自身を含む): 66620736

約数和(自身を除く): 45621648

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 81, 88, 99, 108, 132, 144, 162, 176, 198, 216, 243, 264, 297, 324, 396, 432, 486, 491, 528, 594, 648, 792, 891, 972, 982, 1188, 1296, 1473, 1584, 1782, 1944, 1964, 2376, 2673, 2946, 3564, 3888, 3928, 4419, 4752, 5346, 5401, 5892, 7128, 7856, 8838, 10692, 10802, 11784, 13257, 14256, 16203, 17676, 21384, 21604, 23568, 26514, 32406, 35352, 39771, 42768, 43208, 48609, 53028, 64812, 70704, 79542, 86416, 97218, 106056, 119313, 129624, 145827, 159084, 194436, 212112, 238626, 259248, 291654, 318168, 388872, 437481, 477252, 583308, 636336, 777744, 874962, 954504, 1166616, 1312443, 1749924, 1909008, 2333232, 2624886, 3499848, 5249772, 6999696, 10499544, 20999088]

約数ペア:

[(1, 20999088), (2, 10499544), (3, 6999696), (4, 5249772), (6, 3499848), (8, 2624886), (9, 2333232), (11, 1909008), (12, 1749924), (16, 1312443), (18, 1166616), (22, 954504), (24, 874962), (27, 777744), (33, 636336), (36, 583308), (44, 477252), (48, 437481), (54, 388872), (66, 318168), (72, 291654), (81, 259248), (88, 238626), (99, 212112), (108, 194436), (132, 159084), (144, 145827), (162, 129624), (176, 119313), (198, 106056), (216, 97218), (243, 86416), (264, 79542), (297, 70704), (324, 64812), (396, 53028), (432, 48609), (486, 43208), (491, 42768), (528, 39771), (594, 35352), (648, 32406), (792, 26514), (891, 23568), (972, 21604), (982, 21384), (1188, 17676), (1296, 16203), (1473, 14256), (1584, 13257), (1782, 11784), (1944, 10802), (1964, 10692), (2376, 8838), (2673, 7856), (2946, 7128), (3564, 5892), (3888, 5401), (3928, 5346), (4419, 4752)]