21351680

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2383}}^1$

素因数の和:2411

約数の個数: 72

約数和(自身を含む): 58474752

約数和(自身を除く): 37123072

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, 2383, 4480, 4766, 8960, 9532, 11915, 16681, 19064, 23830, 33362, 38128, 47660, 66724, 76256, 83405, 95320, 133448, 152512, 166810, 190640, 266896, 305024, 333620, 381280, 533792, 610048, 667240, 762560, 1067584, 1334480, 1525120, 2135168, 2668960, 3050240, 4270336, 5337920, 10675840, 21351680]

約数ペア:

[(1, 21351680), (2, 10675840), (4, 5337920), (5, 4270336), (7, 3050240), (8, 2668960), (10, 2135168), (14, 1525120), (16, 1334480), (20, 1067584), (28, 762560), (32, 667240), (35, 610048), (40, 533792), (56, 381280), (64, 333620), (70, 305024), (80, 266896), (112, 190640), (128, 166810), (140, 152512), (160, 133448), (224, 95320), (256, 83405), (280, 76256), (320, 66724), (448, 47660), (560, 38128), (640, 33362), (896, 23830), (1120, 19064), (1280, 16681), (1792, 11915), (2240, 9532), (2383, 8960), (4480, 4766)]