21191544

素因数分解:

$2^3\times 3^5\times {\mathrm{11}}^1\times {\mathrm{991}}^1$

素因数の和:1023

約数の個数: 96

約数和(自身を含む): 64995840

約数和(自身を除く): 43804296

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 132, 162, 198, 216, 243, 264, 297, 324, 396, 486, 594, 648, 792, 891, 972, 991, 1188, 1782, 1944, 1982, 2376, 2673, 2973, 3564, 3964, 5346, 5946, 7128, 7928, 8919, 10692, 10901, 11892, 17838, 21384, 21802, 23784, 26757, 32703, 35676, 43604, 53514, 65406, 71352, 80271, 87208, 98109, 107028, 130812, 160542, 196218, 214056, 240813, 261624, 294327, 321084, 392436, 481626, 588654, 642168, 784872, 882981, 963252, 1177308, 1765962, 1926504, 2354616, 2648943, 3531924, 5297886, 7063848, 10595772, 21191544]

約数ペア:

[(1, 21191544), (2, 10595772), (3, 7063848), (4, 5297886), (6, 3531924), (8, 2648943), (9, 2354616), (11, 1926504), (12, 1765962), (18, 1177308), (22, 963252), (24, 882981), (27, 784872), (33, 642168), (36, 588654), (44, 481626), (54, 392436), (66, 321084), (72, 294327), (81, 261624), (88, 240813), (99, 214056), (108, 196218), (132, 160542), (162, 130812), (198, 107028), (216, 98109), (243, 87208), (264, 80271), (297, 71352), (324, 65406), (396, 53514), (486, 43604), (594, 35676), (648, 32703), (792, 26757), (891, 23784), (972, 21802), (991, 21384), (1188, 17838), (1782, 11892), (1944, 10901), (1982, 10692), (2376, 8919), (2673, 7928), (2973, 7128), (3564, 5946), (3964, 5346)]