21797130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 54603648

約数和(自身を除く): 32806518

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 61, 86, 122, 129, 183, 215, 258, 277, 305, 366, 430, 554, 610, 645, 831, 915, 1290, 1385, 1662, 1830, 2623, 2770, 4155, 5246, 7869, 8310, 11911, 13115, 15738, 16897, 23822, 26230, 33794, 35733, 39345, 50691, 59555, 71466, 78690, 84485, 101382, 119110, 168970, 178665, 253455, 357330, 506910, 726571, 1453142, 2179713, 3632855, 4359426, 7265710, 10898565, 21797130]

約数ペア:

[(1, 21797130), (2, 10898565), (3, 7265710), (5, 4359426), (6, 3632855), (10, 2179713), (15, 1453142), (30, 726571), (43, 506910), (61, 357330), (86, 253455), (122, 178665), (129, 168970), (183, 119110), (215, 101382), (258, 84485), (277, 78690), (305, 71466), (366, 59555), (430, 50691), (554, 39345), (610, 35733), (645, 33794), (831, 26230), (915, 23822), (1290, 16897), (1385, 15738), (1662, 13115), (1830, 11911), (2623, 8310), (2770, 7869), (4155, 5246)]