21538650

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 62103168

約数和(自身を除く): 40564518

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 73, 75, 105, 146, 150, 175, 210, 219, 281, 350, 365, 438, 511, 525, 562, 730, 843, 1022, 1050, 1095, 1405, 1533, 1686, 1825, 1967, 2190, 2555, 2810, 3066, 3650, 3934, 4215, 5110, 5475, 5901, 7025, 7665, 8430, 9835, 10950, 11802, 12775, 14050, 15330, 19670, 20513, 21075, 25550, 29505, 38325, 41026, 42150, 49175, 59010, 61539, 76650, 98350, 102565, 123078, 143591, 147525, 205130, 287182, 295050, 307695, 430773, 512825, 615390, 717955, 861546, 1025650, 1435910, 1538475, 2153865, 3076950, 3589775, 4307730, 7179550, 10769325, 21538650]

約数ペア:

[(1, 21538650), (2, 10769325), (3, 7179550), (5, 4307730), (6, 3589775), (7, 3076950), (10, 2153865), (14, 1538475), (15, 1435910), (21, 1025650), (25, 861546), (30, 717955), (35, 615390), (42, 512825), (50, 430773), (70, 307695), (73, 295050), (75, 287182), (105, 205130), (146, 147525), (150, 143591), (175, 123078), (210, 102565), (219, 98350), (281, 76650), (350, 61539), (365, 59010), (438, 49175), (511, 42150), (525, 41026), (562, 38325), (730, 29505), (843, 25550), (1022, 21075), (1050, 20513), (1095, 19670), (1405, 15330), (1533, 14050), (1686, 12775), (1825, 11802), (1967, 10950), (2190, 9835), (2555, 8430), (2810, 7665), (3066, 7025), (3650, 5901), (3934, 5475), (4215, 5110)]