21999461240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17741501}}^1$

素因数の和:17741543

約数の個数: 32

約数和(自身を含む): 51095525760

約数和(自身を除く): 29096064520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17741501, 35483002, 70966004, 88707505, 141932008, 177415010, 354830020, 549986531, 709660040, 1099973062, 2199946124, 2749932655, 4399892248, 5499865310, 10999730620, 21999461240]

約数ペア:

[(1, 21999461240), (2, 10999730620), (4, 5499865310), (5, 4399892248), (8, 2749932655), (10, 2199946124), (20, 1099973062), (31, 709660040), (40, 549986531), (62, 354830020), (124, 177415010), (155, 141932008), (248, 88707505), (310, 70966004), (620, 35483002), (1240, 17741501)]