21447776

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 72

約数和(自身を含む): 50725584

約数和(自身を除く): 29277808

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 181, 184, 224, 322, 362, 368, 529, 644, 724, 736, 1058, 1267, 1288, 1448, 2116, 2534, 2576, 2896, 3703, 4163, 4232, 5068, 5152, 5792, 7406, 8326, 8464, 10136, 14812, 16652, 16928, 20272, 29141, 29624, 33304, 40544, 58282, 59248, 66608, 95749, 116564, 118496, 133216, 191498, 233128, 382996, 466256, 670243, 765992, 932512, 1340486, 1531984, 2680972, 3063968, 5361944, 10723888, 21447776]

約数ペア:

[(1, 21447776), (2, 10723888), (4, 5361944), (7, 3063968), (8, 2680972), (14, 1531984), (16, 1340486), (23, 932512), (28, 765992), (32, 670243), (46, 466256), (56, 382996), (92, 233128), (112, 191498), (161, 133216), (181, 118496), (184, 116564), (224, 95749), (322, 66608), (362, 59248), (368, 58282), (529, 40544), (644, 33304), (724, 29624), (736, 29141), (1058, 20272), (1267, 16928), (1288, 16652), (1448, 14812), (2116, 10136), (2534, 8464), (2576, 8326), (2896, 7406), (3703, 5792), (4163, 5152), (4232, 5068)]