21797440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:324

約数の個数: 112

約数和(自身を含む): 61155072

約数和(自身を除く): 39357632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 140, 148, 160, 185, 224, 259, 263, 280, 296, 320, 370, 448, 518, 526, 560, 592, 740, 1036, 1052, 1120, 1184, 1295, 1315, 1480, 1841, 2072, 2104, 2240, 2368, 2590, 2630, 2960, 3682, 4144, 4208, 5180, 5260, 5920, 7364, 8288, 8416, 9205, 9731, 10360, 10520, 11840, 14728, 16576, 16832, 18410, 19462, 20720, 21040, 29456, 36820, 38924, 41440, 42080, 48655, 58912, 68117, 73640, 77848, 82880, 84160, 97310, 117824, 136234, 147280, 155696, 194620, 272468, 294560, 311392, 340585, 389240, 544936, 589120, 622784, 681170, 778480, 1089872, 1362340, 1556960, 2179744, 2724680, 3113920, 4359488, 5449360, 10898720, 21797440]

約数ペア:

[(1, 21797440), (2, 10898720), (4, 5449360), (5, 4359488), (7, 3113920), (8, 2724680), (10, 2179744), (14, 1556960), (16, 1362340), (20, 1089872), (28, 778480), (32, 681170), (35, 622784), (37, 589120), (40, 544936), (56, 389240), (64, 340585), (70, 311392), (74, 294560), (80, 272468), (112, 194620), (140, 155696), (148, 147280), (160, 136234), (185, 117824), (224, 97310), (259, 84160), (263, 82880), (280, 77848), (296, 73640), (320, 68117), (370, 58912), (448, 48655), (518, 42080), (526, 41440), (560, 38924), (592, 36820), (740, 29456), (1036, 21040), (1052, 20720), (1120, 19462), (1184, 18410), (1295, 16832), (1315, 16576), (1480, 14728), (1841, 11840), (2072, 10520), (2104, 10360), (2240, 9731), (2368, 9205), (2590, 8416), (2630, 8288), (2960, 7364), (3682, 5920), (4144, 5260), (4208, 5180)]