17721928

素因数分解:

$2^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{853}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 39429180

約数和(自身を除く): 21707252

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 371, 392, 424, 742, 853, 1484, 1706, 2597, 2968, 3412, 5194, 5971, 6824, 10388, 11942, 20776, 23884, 41797, 45209, 47768, 83594, 90418, 167188, 180836, 316463, 334376, 361672, 632926, 1265852, 2215241, 2531704, 4430482, 8860964, 17721928]

約数ペア:

[(1, 17721928), (2, 8860964), (4, 4430482), (7, 2531704), (8, 2215241), (14, 1265852), (28, 632926), (49, 361672), (53, 334376), (56, 316463), (98, 180836), (106, 167188), (196, 90418), (212, 83594), (371, 47768), (392, 45209), (424, 41797), (742, 23884), (853, 20776), (1484, 11942), (1706, 10388), (2597, 6824), (2968, 5971), (3412, 5194)]