21096080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13879}}^1$

素因数の和:13911

約数の個数: 40

約数和(自身を含む): 51633600

約数和(自身を除く): 30537520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13879, 27758, 55516, 69395, 111032, 138790, 222064, 263701, 277580, 527402, 555160, 1054804, 1110320, 1318505, 2109608, 2637010, 4219216, 5274020, 10548040, 21096080]

約数ペア:

[(1, 21096080), (2, 10548040), (4, 5274020), (5, 4219216), (8, 2637010), (10, 2109608), (16, 1318505), (19, 1110320), (20, 1054804), (38, 555160), (40, 527402), (76, 277580), (80, 263701), (95, 222064), (152, 138790), (190, 111032), (304, 69395), (380, 55516), (760, 27758), (1520, 13879)]