20972224

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^2\times {\mathrm{277}}^1$

素因数の和:322

約数の個数: 84

約数和(自身を含む): 51687984

約数和(自身を除く): 30715760

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 169, 182, 208, 224, 277, 338, 364, 416, 448, 554, 676, 728, 832, 1108, 1183, 1352, 1456, 1939, 2216, 2366, 2704, 2912, 3601, 3878, 4432, 4732, 5408, 5824, 7202, 7756, 8864, 9464, 10816, 14404, 15512, 17728, 18928, 25207, 28808, 31024, 37856, 46813, 50414, 57616, 62048, 75712, 93626, 100828, 115232, 124096, 187252, 201656, 230464, 327691, 374504, 403312, 655382, 749008, 806624, 1310764, 1498016, 1613248, 2621528, 2996032, 5243056, 10486112, 20972224]

約数ペア:

[(1, 20972224), (2, 10486112), (4, 5243056), (7, 2996032), (8, 2621528), (13, 1613248), (14, 1498016), (16, 1310764), (26, 806624), (28, 749008), (32, 655382), (52, 403312), (56, 374504), (64, 327691), (91, 230464), (104, 201656), (112, 187252), (169, 124096), (182, 115232), (208, 100828), (224, 93626), (277, 75712), (338, 62048), (364, 57616), (416, 50414), (448, 46813), (554, 37856), (676, 31024), (728, 28808), (832, 25207), (1108, 18928), (1183, 17728), (1352, 15512), (1456, 14404), (1939, 10816), (2216, 9464), (2366, 8864), (2704, 7756), (2912, 7202), (3601, 5824), (3878, 5408), (4432, 4732)]