20751408

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^1\times {\mathrm{2719}}^1$

素因数の和:2786

約数の個数: 60

約数和(自身を含む): 59192640

約数和(自身を除く): 38441232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 72, 106, 144, 159, 212, 318, 424, 477, 636, 848, 954, 1272, 1908, 2544, 2719, 3816, 5438, 7632, 8157, 10876, 16314, 21752, 24471, 32628, 43504, 48942, 65256, 97884, 130512, 144107, 195768, 288214, 391536, 432321, 576428, 864642, 1152856, 1296963, 1729284, 2305712, 2593926, 3458568, 5187852, 6917136, 10375704, 20751408]

約数ペア:

[(1, 20751408), (2, 10375704), (3, 6917136), (4, 5187852), (6, 3458568), (8, 2593926), (9, 2305712), (12, 1729284), (16, 1296963), (18, 1152856), (24, 864642), (36, 576428), (48, 432321), (53, 391536), (72, 288214), (106, 195768), (144, 144107), (159, 130512), (212, 97884), (318, 65256), (424, 48942), (477, 43504), (636, 32628), (848, 24471), (954, 21752), (1272, 16314), (1908, 10876), (2544, 8157), (2719, 7632), (3816, 5438)]