21707224

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 29614376

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 131, 154, 262, 269, 308, 524, 538, 616, 917, 1048, 1076, 1441, 1834, 1883, 2152, 2882, 2959, 3668, 3766, 5764, 5918, 7336, 7532, 10087, 11528, 11836, 15064, 20174, 20713, 23672, 35239, 40348, 41426, 70478, 80696, 82852, 140956, 165704, 246673, 281912, 387629, 493346, 775258, 986692, 1550516, 1973384, 2713403, 3101032, 5426806, 10853612, 21707224]

約数ペア:

[(1, 21707224), (2, 10853612), (4, 5426806), (7, 3101032), (8, 2713403), (11, 1973384), (14, 1550516), (22, 986692), (28, 775258), (44, 493346), (56, 387629), (77, 281912), (88, 246673), (131, 165704), (154, 140956), (262, 82852), (269, 80696), (308, 70478), (524, 41426), (538, 40348), (616, 35239), (917, 23672), (1048, 20713), (1076, 20174), (1441, 15064), (1834, 11836), (1883, 11528), (2152, 10087), (2882, 7532), (2959, 7336), (3668, 5918), (3766, 5764)]