21191004

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:504

約数の個数: 96

約数和(自身を含む): 60480000

約数和(自身を除く): 39288996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 27, 36, 38, 46, 54, 57, 69, 76, 92, 108, 114, 138, 171, 207, 228, 276, 342, 414, 437, 449, 513, 621, 684, 828, 874, 898, 1026, 1242, 1311, 1347, 1748, 1796, 2052, 2484, 2622, 2694, 3933, 4041, 5244, 5388, 7866, 8082, 8531, 10327, 11799, 12123, 15732, 16164, 17062, 20654, 23598, 24246, 25593, 30981, 34124, 41308, 47196, 48492, 51186, 61962, 76779, 92943, 102372, 123924, 153558, 185886, 196213, 230337, 278829, 307116, 371772, 392426, 460674, 557658, 588639, 784852, 921348, 1115316, 1177278, 1765917, 2354556, 3531834, 5297751, 7063668, 10595502, 21191004]

約数ペア:

[(1, 21191004), (2, 10595502), (3, 7063668), (4, 5297751), (6, 3531834), (9, 2354556), (12, 1765917), (18, 1177278), (19, 1115316), (23, 921348), (27, 784852), (36, 588639), (38, 557658), (46, 460674), (54, 392426), (57, 371772), (69, 307116), (76, 278829), (92, 230337), (108, 196213), (114, 185886), (138, 153558), (171, 123924), (207, 102372), (228, 92943), (276, 76779), (342, 61962), (414, 51186), (437, 48492), (449, 47196), (513, 41308), (621, 34124), (684, 30981), (828, 25593), (874, 24246), (898, 23598), (1026, 20654), (1242, 17062), (1311, 16164), (1347, 15732), (1748, 12123), (1796, 11799), (2052, 10327), (2484, 8531), (2622, 8082), (2694, 7866), (3933, 5388), (4041, 5244)]