21655494

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{171869}}^1$

素因数の和:171884

約数の個数: 24

約数和(自身を含む): 53623440

約数和(自身を除く): 31967946

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 171869, 343738, 515607, 1031214, 1203083, 1546821, 2406166, 3093642, 3609249, 7218498, 10827747, 21655494]

約数ペア:

[(1, 21655494), (2, 10827747), (3, 7218498), (6, 3609249), (7, 3093642), (9, 2406166), (14, 1546821), (18, 1203083), (21, 1031214), (42, 515607), (63, 343738), (126, 171869)]