21386988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84869}}^1$

素因数の和:84886

約数の個数: 36

約数和(自身を含む): 61785360

約数和(自身を除く): 40398372

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84869, 169738, 254607, 339476, 509214, 594083, 763821, 1018428, 1188166, 1527642, 1782249, 2376332, 3055284, 3564498, 5346747, 7128996, 10693494, 21386988]

約数ペア:

[(1, 21386988), (2, 10693494), (3, 7128996), (4, 5346747), (6, 3564498), (7, 3055284), (9, 2376332), (12, 1782249), (14, 1527642), (18, 1188166), (21, 1018428), (28, 763821), (36, 594083), (42, 509214), (63, 339476), (84, 254607), (126, 169738), (252, 84869)]