21510300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10243}}^1$

素因数の和:10267

約数の個数: 72

約数和(自身を含む): 71134336

約数和(自身を除く): 49624036

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10243, 20486, 30729, 40972, 51215, 61458, 71701, 102430, 122916, 143402, 153645, 204860, 215103, 256075, 286804, 307290, 358505, 430206, 512150, 614580, 717010, 768225, 860412, 1024300, 1075515, 1434020, 1536450, 1792525, 2151030, 3072900, 3585050, 4302060, 5377575, 7170100, 10755150, 21510300]

約数ペア:

[(1, 21510300), (2, 10755150), (3, 7170100), (4, 5377575), (5, 4302060), (6, 3585050), (7, 3072900), (10, 2151030), (12, 1792525), (14, 1536450), (15, 1434020), (20, 1075515), (21, 1024300), (25, 860412), (28, 768225), (30, 717010), (35, 614580), (42, 512150), (50, 430206), (60, 358505), (70, 307290), (75, 286804), (84, 256075), (100, 215103), (105, 204860), (140, 153645), (150, 143402), (175, 122916), (210, 102430), (300, 71701), (350, 61458), (420, 51215), (525, 40972), (700, 30729), (1050, 20486), (2100, 10243)]