21329560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4481}}^1$

素因数の和:4516

約数の個数: 64

約数和(自身を含む): 58086720

約数和(自身を除く): 36757160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4481, 4760, 8962, 17924, 22405, 31367, 35848, 44810, 62734, 76177, 89620, 125468, 152354, 156835, 179240, 250936, 304708, 313670, 380885, 533239, 609416, 627340, 761770, 1066478, 1254680, 1523540, 2132956, 2666195, 3047080, 4265912, 5332390, 10664780, 21329560]

約数ペア:

[(1, 21329560), (2, 10664780), (4, 5332390), (5, 4265912), (7, 3047080), (8, 2666195), (10, 2132956), (14, 1523540), (17, 1254680), (20, 1066478), (28, 761770), (34, 627340), (35, 609416), (40, 533239), (56, 380885), (68, 313670), (70, 304708), (85, 250936), (119, 179240), (136, 156835), (140, 152354), (170, 125468), (238, 89620), (280, 76177), (340, 62734), (476, 44810), (595, 35848), (680, 31367), (952, 22405), (1190, 17924), (2380, 8962), (4481, 4760)]