21495040

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2399}}^1$

素因数の和:2427

約数の個数: 72

約数和(自身を含む): 58867200

約数和(自身を除く): 37372160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2399, 4480, 4798, 8960, 9596, 11995, 16793, 19192, 23990, 33586, 38384, 47980, 67172, 76768, 83965, 95960, 134344, 153536, 167930, 191920, 268688, 307072, 335860, 383840, 537376, 614144, 671720, 767680, 1074752, 1343440, 1535360, 2149504, 2686880, 3070720, 4299008, 5373760, 10747520, 21495040]

約数ペア:

[(1, 21495040), (2, 10747520), (4, 5373760), (5, 4299008), (7, 3070720), (8, 2686880), (10, 2149504), (14, 1535360), (16, 1343440), (20, 1074752), (28, 767680), (32, 671720), (35, 614144), (40, 537376), (56, 383840), (64, 335860), (70, 307072), (80, 268688), (112, 191920), (128, 167930), (140, 153536), (160, 134344), (224, 95960), (256, 83965), (280, 76768), (320, 67172), (448, 47980), (560, 38384), (640, 33586), (896, 23990), (1120, 19192), (1280, 16793), (1792, 11995), (2240, 9596), (2399, 8960), (4480, 4798)]