20451852

素因数分解:

$2^2\times 3^5\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 54761616

約数和(自身を除く): 34309764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 81, 106, 108, 159, 162, 212, 243, 318, 324, 397, 477, 486, 636, 794, 954, 972, 1191, 1431, 1588, 1908, 2382, 2862, 3573, 4293, 4764, 5724, 7146, 8586, 10719, 12879, 14292, 17172, 21041, 21438, 25758, 32157, 42082, 42876, 51516, 63123, 64314, 84164, 96471, 126246, 128628, 189369, 192942, 252492, 378738, 385884, 568107, 757476, 1136214, 1704321, 2272428, 3408642, 5112963, 6817284, 10225926, 20451852]

約数ペア:

[(1, 20451852), (2, 10225926), (3, 6817284), (4, 5112963), (6, 3408642), (9, 2272428), (12, 1704321), (18, 1136214), (27, 757476), (36, 568107), (53, 385884), (54, 378738), (81, 252492), (106, 192942), (108, 189369), (159, 128628), (162, 126246), (212, 96471), (243, 84164), (318, 64314), (324, 63123), (397, 51516), (477, 42876), (486, 42082), (636, 32157), (794, 25758), (954, 21438), (972, 21041), (1191, 17172), (1431, 14292), (1588, 12879), (1908, 10719), (2382, 8586), (2862, 7146), (3573, 5724), (4293, 4764)]