21681702

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1458

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 34766298

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 54, 63, 82, 123, 126, 189, 246, 287, 369, 378, 574, 738, 861, 1107, 1399, 1722, 2214, 2583, 2798, 4197, 5166, 7749, 8394, 9793, 12591, 15498, 19586, 25182, 29379, 37773, 57359, 58758, 75546, 88137, 114718, 172077, 176274, 264411, 344154, 401513, 516231, 528822, 803026, 1032462, 1204539, 1548693, 2409078, 3097386, 3613617, 7227234, 10840851, 21681702]

約数ペア:

[(1, 21681702), (2, 10840851), (3, 7227234), (6, 3613617), (7, 3097386), (9, 2409078), (14, 1548693), (18, 1204539), (21, 1032462), (27, 803026), (41, 528822), (42, 516231), (54, 401513), (63, 344154), (82, 264411), (123, 176274), (126, 172077), (189, 114718), (246, 88137), (287, 75546), (369, 58758), (378, 57359), (574, 37773), (738, 29379), (861, 25182), (1107, 19586), (1399, 15498), (1722, 12591), (2214, 9793), (2583, 8394), (2798, 7749), (4197, 5166)]