21423360

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{797}}^1$

素因数の和:828

約数の個数: 144

約数和(自身を含む): 78293376

約数和(自身を除く): 56870016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 797, 840, 896, 960, 1120, 1280, 1344, 1594, 1680, 1792, 1920, 2240, 2391, 2688, 3188, 3360, 3840, 3985, 4480, 4782, 5376, 5579, 6376, 6720, 7970, 8960, 9564, 11158, 11955, 12752, 13440, 15940, 16737, 19128, 22316, 23910, 25504, 26880, 27895, 31880, 33474, 38256, 44632, 47820, 51008, 55790, 63760, 66948, 76512, 83685, 89264, 95640, 102016, 111580, 127520, 133896, 153024, 167370, 178528, 191280, 204032, 223160, 255040, 267792, 306048, 334740, 357056, 382560, 446320, 510080, 535584, 612096, 669480, 714112, 765120, 892640, 1020160, 1071168, 1338960, 1428224, 1530240, 1785280, 2142336, 2677920, 3060480, 3570560, 4284672, 5355840, 7141120, 10711680, 21423360]

約数ペア:

[(1, 21423360), (2, 10711680), (3, 7141120), (4, 5355840), (5, 4284672), (6, 3570560), (7, 3060480), (8, 2677920), (10, 2142336), (12, 1785280), (14, 1530240), (15, 1428224), (16, 1338960), (20, 1071168), (21, 1020160), (24, 892640), (28, 765120), (30, 714112), (32, 669480), (35, 612096), (40, 535584), (42, 510080), (48, 446320), (56, 382560), (60, 357056), (64, 334740), (70, 306048), (80, 267792), (84, 255040), (96, 223160), (105, 204032), (112, 191280), (120, 178528), (128, 167370), (140, 153024), (160, 133896), (168, 127520), (192, 111580), (210, 102016), (224, 95640), (240, 89264), (256, 83685), (280, 76512), (320, 66948), (336, 63760), (384, 55790), (420, 51008), (448, 47820), (480, 44632), (560, 38256), (640, 33474), (672, 31880), (768, 27895), (797, 26880), (840, 25504), (896, 23910), (960, 22316), (1120, 19128), (1280, 16737), (1344, 15940), (1594, 13440), (1680, 12752), (1792, 11955), (1920, 11158), (2240, 9564), (2391, 8960), (2688, 7970), (3188, 6720), (3360, 6376), (3840, 5579), (3985, 5376), (4480, 4782)]