21177936

素因数分解:

$2^4\times 3^5\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:455

約数の個数: 120

約数和(自身を含む): 66349920

約数和(自身を除く): 45171984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 312, 324, 351, 419, 432, 468, 486, 624, 648, 702, 838, 936, 972, 1053, 1257, 1296, 1404, 1676, 1872, 1944, 2106, 2514, 2808, 3159, 3352, 3771, 3888, 4212, 5028, 5447, 5616, 6318, 6704, 7542, 8424, 10056, 10894, 11313, 12636, 15084, 16341, 16848, 20112, 21788, 22626, 25272, 30168, 32682, 33939, 43576, 45252, 49023, 50544, 60336, 65364, 67878, 87152, 90504, 98046, 101817, 130728, 135756, 147069, 181008, 196092, 203634, 261456, 271512, 294138, 392184, 407268, 441207, 543024, 588276, 784368, 814536, 882414, 1176552, 1323621, 1629072, 1764828, 2353104, 2647242, 3529656, 5294484, 7059312, 10588968, 21177936]

約数ペア:

[(1, 21177936), (2, 10588968), (3, 7059312), (4, 5294484), (6, 3529656), (8, 2647242), (9, 2353104), (12, 1764828), (13, 1629072), (16, 1323621), (18, 1176552), (24, 882414), (26, 814536), (27, 784368), (36, 588276), (39, 543024), (48, 441207), (52, 407268), (54, 392184), (72, 294138), (78, 271512), (81, 261456), (104, 203634), (108, 196092), (117, 181008), (144, 147069), (156, 135756), (162, 130728), (208, 101817), (216, 98046), (234, 90504), (243, 87152), (312, 67878), (324, 65364), (351, 60336), (419, 50544), (432, 49023), (468, 45252), (486, 43576), (624, 33939), (648, 32682), (702, 30168), (838, 25272), (936, 22626), (972, 21788), (1053, 20112), (1257, 16848), (1296, 16341), (1404, 15084), (1676, 12636), (1872, 11313), (1944, 10894), (2106, 10056), (2514, 8424), (2808, 7542), (3159, 6704), (3352, 6318), (3771, 5616), (3888, 5447), (4212, 5028)]