21995424

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 70053984

約数和(自身を除く): 48058560

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 53, 66, 72, 88, 96, 99, 106, 131, 132, 144, 159, 176, 198, 212, 262, 264, 288, 318, 352, 393, 396, 424, 477, 524, 528, 583, 636, 786, 792, 848, 954, 1048, 1056, 1166, 1179, 1272, 1441, 1572, 1584, 1696, 1749, 1908, 2096, 2332, 2358, 2544, 2882, 3144, 3168, 3498, 3816, 4192, 4323, 4664, 4716, 5088, 5247, 5764, 6288, 6943, 6996, 7632, 8646, 9328, 9432, 10494, 11528, 12576, 12969, 13886, 13992, 15264, 17292, 18656, 18864, 20829, 20988, 23056, 25938, 27772, 27984, 34584, 37728, 41658, 41976, 46112, 51876, 55544, 55968, 62487, 69168, 76373, 83316, 83952, 103752, 111088, 124974, 138336, 152746, 166632, 167904, 207504, 222176, 229119, 249948, 305492, 333264, 415008, 458238, 499896, 610984, 666528, 687357, 916476, 999792, 1221968, 1374714, 1832952, 1999584, 2443936, 2749428, 3665904, 5498856, 7331808, 10997712, 21995424]

約数ペア:

[(1, 21995424), (2, 10997712), (3, 7331808), (4, 5498856), (6, 3665904), (8, 2749428), (9, 2443936), (11, 1999584), (12, 1832952), (16, 1374714), (18, 1221968), (22, 999792), (24, 916476), (32, 687357), (33, 666528), (36, 610984), (44, 499896), (48, 458238), (53, 415008), (66, 333264), (72, 305492), (88, 249948), (96, 229119), (99, 222176), (106, 207504), (131, 167904), (132, 166632), (144, 152746), (159, 138336), (176, 124974), (198, 111088), (212, 103752), (262, 83952), (264, 83316), (288, 76373), (318, 69168), (352, 62487), (393, 55968), (396, 55544), (424, 51876), (477, 46112), (524, 41976), (528, 41658), (583, 37728), (636, 34584), (786, 27984), (792, 27772), (848, 25938), (954, 23056), (1048, 20988), (1056, 20829), (1166, 18864), (1179, 18656), (1272, 17292), (1441, 15264), (1572, 13992), (1584, 13886), (1696, 12969), (1749, 12576), (1908, 11528), (2096, 10494), (2332, 9432), (2358, 9328), (2544, 8646), (2882, 7632), (3144, 6996), (3168, 6943), (3498, 6288), (3816, 5764), (4192, 5247), (4323, 5088), (4664, 4716)]